Why experts are sounding the alarm about the hidden dangers of gas stoves

Quartz – SLOW BURN

Why experts are sounding the alarm about the hidden dangers of gas stoves

By Jonathan Mingle                            December 4, 2020
Gas stove burner
AP PHOTO/JOERG SARBACH.
Keeping the flame at a low burn. Every industry can be part of the solution — or part of the ongoing problem.

As a physician and epidemiologist with the US Centers for Disease Control and Prevention, T. Stephen Jones spent his career fighting major threats to public health in the US and globally, from smallpox to HIV to viral hepatitis. But it wasn’t until Jones was well into retirement that he learned about a widespread yet widely overlooked health risk in his own home in Florence, Massachusetts, and in most US households: pollution emitted by natural gas appliances.

While many Americans might think illness linked to indoor cooking and heating is a problem confined to smoke-filled kitchens in the developing world, the natural gas-burning stoves and furnaces found in millions of US kitchens and basements can produce a range of health-damaging pollutants, including particulate matter (PM), nitrogen dioxide (NO2), carbon monoxide (CO), and formaldehyde. Over the past four decades, researchers have amassed a large body of scientific evidence linking the use of gas appliances, especially for cooking, with a higher risk of a range of respiratory problems and illnesses.

Since the publication of two new reports on the subject from the nonprofit research group the Rocky Mountain Institute (RMI) and the UCLA Fielding School of Public Health, this past spring, the existence of these gas-fired health hazards has garnered increasing media scrutiny. But less discussed has been how the Covid-19 pandemic has compounded the risks of this pollution, especially for low-income and vulnerable populations, and how key regulatory agencies have lagged decades behind the science in acting to protect them.

“There’s no question this has been a neglected issue,” said Jones, who has drawn on lessons from his long career in public health epidemiology and disease prevention in sounding the alarm throughout Massachusetts and with former CDC colleagues over the past few years. The first step, he said, is “letting people know what the risks are—particularly when they can be substantial, life-threatening risks that can kill kids.”

One of the clearest signals emerging in the scientific literature is the connection between cooking with gas and childhood asthma—a disease suffered by people of color and lower-income groups at much higher rates than the rest of the population. A 2013 meta-analysis of 41 studies found that children living in homes with gas stoves had a 42% higher risk of experiencing asthma symptoms, and, over their lifetime, a 24% increase in the risk of being diagnosed with asthma. That study confirmed, in turn, what a 1992 meta-analysis found: Children exposed to higher levels of indoor NO2 (at an increment “comparable to the increase resulting from exposure to a gas stove”) had an elevated risk of respiratory illness. More recently, a 2018 study from the University of Queensland found that in Australia, where 38% of households rely on gas stoves for cooking, more than 12% of the total burden of childhood asthma was attributable to their use.

Meanwhile, troubling new findings suggest that exposure to NO2—the primary pollutant of concern from gas appliances—could compound the dangers of the novel coronavirus in communities that are already at higher risk of infection and of dying from the disease. A recent peer-reviewed study led by researchers at Emory University examined Covid-19 mortality data in more than 3,000 US counties, and found that long-term exposure to elevated NO2 was correlated with a higher risk of death from Covid-19—and that NO2 appeared to be more dangerous than particulate matter or ozone.

The hazards now have a growing chorus of scientists and public health experts insisting that better and stricter oversight of burning gas indoors—a health threat that has been hiding in plain sight for decades, they say—can no longer be ignored. “It’s fundamental and imperative,” said Jones. “We ought to get up on the rooftops and shout about it.”

The cumulative evidence was enough for the venerable New England Journal of Medicine to publish an editorial in January recommending that “new gas appliances be removed from the market.” It was co-authored by Howard Frumkin, a former director of the CDC’s National Center for Environmental Health, which is responsible for investigating environmental drivers of illness and promulgating guidance about those risk factors.

Despite such calls—and despite compelling evidence that gas appliances can produce levels of air pollution inside homes that would be illegal outdoors in the US—indoor air quality remains entirely unregulated in the US today, and gas appliances largely maintain their industry-manufactured reputation as “clean.” The Environmental Protection Agency only monitors pollutants in outdoor air. And while building codes typically require natural gas furnaces and water heaters to be vented outside, many states lack requirements that natural gas cooking stoves be vented to the outdoors.

Still, recent signs suggest that some measure of regulatory action reflecting the current understanding of the health risks of gas cooking and heating devices might finally be forthcoming. At the end of September, the California Energy Commission held a day-long workshop on indoor air quality and cooking to inform its triennial update to its building energy efficiency standards. The California Air Resources Board (CARB), which regulates air pollution in the state, presented evidence that gas stoves harm health, and that a statewide transition to electric appliances would result in substantial health benefits. These obscure energy code deliberations have generated an unprecedented number of public comments—testament, advocates say, to mounting concern about greenhouse gas emissions, and to growing awareness of the health impacts of residential fossil fuel use.

Last month, the 16 members of CARB unanimously adopted a resolution in support of updating building codes to improve ventilation standards and move toward electrification of appliances—making California the first state to issue official guidance addressing the health impacts of gas stoves and other appliances.

This guidance—which cited the evidence linking gas appliances with asthma and exposure to air pollution more generally with elevated Covid-19 risks—boosts the hopes of those advocating for the decarbonization of California’s buildings that the Energy Commission will require new construction in the state to be all-electric in 2022. If that happens, it would instantly transform the country’s largest market for gas appliances, in a move that could reverberate nationwide.

Until then, advocates for reform suggest they’ll keep pushing—not least because, while this long chain of evidence would be worrying under any circumstance, the Covid-19 pandemic is keeping more people inside cooking at home than ever before.


Jones’ advocacy started with a phone call. In 2017, his wife, Adele Franks, also a retired public health physician, received a call from the local chapter of the Sierra Club, asking if she would like to help raise awareness among Massachusetts state public health officials about the health effects of gas appliances. She was too busy, so Jones took on the project instead.

He started digging into the peer-reviewed literature. He called experts on air pollution and respiratory health at research universities and reached out to former colleagues at the CDC. While the topic was new to him, analyzing epidemiological studies and assessing their rigor was not. At the CDC, Jones had worked on childhood immunization and child survival programs in Latin America and Africa and spent over a decade as its lead policy expert on HIV and viral hepatitis prevention. (He and Franks are both alumni of the CDC’s Epidemic Intelligence Service, which trains “disease detectives” to investigate and respond to public health emergencies in the US and around the world.)

Jones says he was struck by the discrepancy between the firmness of the evidence and the nearly non-existent response from regulators and public health agencies. Indeed, he found the evidence so persuasive that he traveled around Massachusetts, making presentations to local boards of health in more than 70 different cities and towns.

“One of the things I would always ask them was, ‘Have you heard about this connection between cooking with a gas stove and increased asthma among children living in the household?’” Jones said. The answer he received—from health board members and from former colleagues working in medicine and public health—was almost always “No.”

The fact that these gas stoves contribute to elevated NO2 is indisputable.

At around this same time, Brady Seals, a researcher at the Rocky Mountain Institute (RMI), a nonprofit clean energy think tank, who co-authored its recent report summarizing decades’ worth of research on the health effects of gas stoves, was combing through the preceding 20 years’ worth of peer-reviewed studies on the subject. She pored over the EPA’s 2008 and 2016 Integrated Science Assessments on nitrogen oxides, the latter of which concluded that short-term NO2 exposure can exacerbate asthma and cause other adverse respiratory effects.

“The more I dug in and talked to experts in the field, I kept waiting to find out we were wrong,” Seals said. “It was the opposite. In every case, the evidence seems to be strengthening on NO2 and its impacts on health.” The RMI report (co-sponsored by advocacy groups Mothers Out Front, Physicians for Social Responsibility, and the Sierra Club) drew on that evidence to conclude that combustion products emitted by natural gas stoves can cause chronic respiratory illness.

“And the fact that these gas stoves contribute to elevated NO2 is indisputable,” added Seals.

Indeed, the EPA’s own analysis has found that American homes with gas stoves have much higher concentrations of NO2 than those using electric stoves—levels that would violate legal limits if measured outdoors.

Several of the studies cited in RMI’s report were led by Brett Singer, a staff scientist and leader of the Indoor Environment Group at Lawrence Berkeley National Laboratory (LBNL), who has been studying indoor air pollution for two decades. Measurement studies have found higher concentrations of NO2 and other pollutants in homes that rely on gas cooking since at least the 1980s, he said in an email.

“It is still a big problem,” he said. “LBNL has done several moderately-sized measurement studies in California in the past 10 years to show that elevated pollutant concentrations are still associated with gas cooking.”

Given that more than a third of all US households rely primarily on gas for cooking, the extent of the damage to people’s health, the RMI report concluded, could be quite large.

Seals spent over a decade working on clean cookstove programs in the developing world, where pollution from reliance on burning wood, coal, and dung for cooking kills 3.8 million people each year. But like Steve Jones, she wasn’t aware of these health risks from a fuel long touted by the natural gas industry, and embraced by the American public, as clean. “I was working on nothing but cookstoves for the past 11 years, but I didn’t really know a lot of this,” she said. “It’s humbling, in a way.”


The links between gas appliances and asthma—and the fact that environmental regulators and consumer protection agencies have long ignored the risk—have both been on Kevin Hamilton’s radar for a while. Hamilton is a licensed respiratory therapist and leader of the Central California Asthma Collaborative (CCAC), an organization that provides direct support to residents of California’s San Joaquin Valley who suffer from asthma and advocates for policy on their behalf.

In the San Joaquin Valley, which has long had some of the worst outdoor air pollution in the US, as many as 1 in 4 children have asthma. But from his years of working directly with asthmatics, Hamilton knows firsthand that their indoor air can trigger asthma, too.

His organization’s community health workers regularly visit homes to look for potential asthma triggers like mold, dust, and allergens, and help homeowners find ways to reduce their exposure. (Since the Covid-19 pandemic emerged, CCAC staff have been doing “virtual” home assessments using smart phones.) One of the key items on their checklist: the presence of a gas appliance. “We note whether or not they have a gas stove or electric stove, and gas for their heating and cooling,” Hamilton said. “Some homes are pretty old, and still have wall furnaces and floor heaters. We have concerns about all those things.”

Californians’ gas consumption is much higher than the national average. In about two thirds of California’s 14 million homes, gas is the primary cooking fuel, and a similar share relies on gas for heating. (Nationwide, 58% of households rely on natural gas as their main space heating fuel and 56% use gas for water heating, according to the Energy Information Administration.)

The vast majority of households that the asthma collaborative serves are low-income. “Our families are all on Medicaid or underinsured,” Hamilton said. Unvented gas-burning space heaters are illegal in California, but he noted that plenty of people still use them because they can’t afford alternatives or live in sub-standard rental housing.

These gas heaters can be even more dangerous than gas cooking appliances, Singer noted, because they are used for much longer periods, and are designed to vent directly into the living space, resulting in “very high pollutant concentrations.”

Especially in a home with poor ventilation, these particles can be highly concentrated with long-term health effects on people’s lives.

And some people, especially renters, even use their gas ovens as supplemental heating sources in the winter, or as a primary one if their electricity gets shut off.

“These are the most vulnerable folks, and have the least resources to do anything about this,” Hamilton said. “Especially in a home with poor ventilation, these particles can be highly concentrated with long-term health effects on people’s lives.”

Yifang Zhu, a professor of environmental health sciences at UCLA’s Fielding School of Public Health, underscored that point. “Smaller spaces, with more people in them, and poor ventilation, especially in rental apartment units, all mean higher levels of pollutants,” she said.

Zhu led a team of researchers that published a report in April examining the impact of natural gas appliances—including furnaces and water heaters—on health and air quality in California. One of the most striking findings from their modeling: In nearly all small apartments, cooking for just one hour on a gas stove results in NO2 concentrations that would far exceed ambient air quality limits set by the EPA and CARB.

Many of the houses and apartments that the asthma collaborative’s health workers evaluate don’t have functioning range hoods. And survey data cited by Zhu shows that only about a third of Californians who do have exhaust hoods use them regularly.

“Our work highlights that environmental-justice communities are disproportionately impacted by these issues,” Zhu said, referring to low-income and minority communities who often have higher exposures and greater vulnerability to environmental harms. “We need to understand there’s a cumulative, compounding health impact of those environmental conditions those populations are experiencing.”

Zhu’s team also calculated how much outdoor concentrations of nitrogen oxides and PM2.5—microscopic, airborne particles 2.5 micrometers or less in diameter—would be reduced by eliminating natural gas appliances from California homes. They estimated that the health benefits of going all-electric—in the form of avoided deaths and chronic illness—would amount to $3.5 billion per year.

And that estimate does not include the added benefits of indoor air quality improvements. Gaining access to people’s homes to observe their cooking and heating preferences and patterns, understand the physical layout, and monitor personal exposure is both logistically and ethically challenging, given privacy concerns and funding constraints. As a result, there are comparatively fewer studies that involve direct measurements of indoor air and individuals’ exposure.

Still, Zhu noted that if the impacts of breathing indoor particulate matter, carbon monoxide, and nitrogen oxides from gas combustion were tallied up, the health benefits of avoiding that exposure would almost certainly be far larger. “We know the most serious impacts happen indoors, so we can assume most health benefits will occur from replacing those indoor polluting appliances,” she said.

The people most burdened by these impacts are those who struggle the most to pay for cleaner alternatives.

The toll exacted by asthma alone gives a sense of the potential scale. Nearly 1.5 million children in California suffer from asthma. A 2015 report by the California Environmental Health Tracking Program found that childhood asthma results in more than 72,000 emergency room visits and 1.3 million missed school days per year. It calculated that the costs of childhood asthma—both the direct costs of treatment and hospitalization, as well as indirect costs from keeping sick kids home from school—due to environmental factors alone would be $208 million. The total cost of all asthma in the state, among children and adults, is estimated to be $11 billion.

During the recent wildfires plaguing California, CARB tweeted advice to stay indoors and shut windows to avoid breathing wildfire smoke. “Avoid vacuuming, frying foods or using gas-powered appliances,” the agency added.

For the millions of Californians who cook and heat with gas, however, that guidance presents an impossible choice—as does the specter of Covid-19, which has more of us worried about indoor ventilation. Several new studies suggest that people infected with SARS-CoV-2, the virus that causes Covid-19, who have higher exposure to air pollution are more likely to have severe cases of the disease.

“The people most burdened by these impacts are those who struggle the most to pay for cleaner alternatives,” says Seals. “We need policymakers to target those folks, and we need better rebates for electric stoves.”


For a long time, the blue flame coming out of a gas burner has evoked cleanliness. That was no accident, but the result of a concerted advertising campaign.

In the late 19th century, the nascent natural gas industry began marketing their product to homeowners as a cleaner, more hygienic alternative to coal and wood. After the famous comedian Bob Hope popularized the catchphrase “now you’re cooking with gas!” on his 1930s-era radio show, the slogan became synonymous with “modern, efficient, clean.”

Compared to the wood and coal it replaced in US households, gas was, and is, undoubtedly far better for air quality and health. That’s still true for the billions of people in the developing world who rely on solid fuels for cooking and heating, and are exposed to dangerous smoke every day as a result.

But the catchphrase is in need of updating, critics of such marketing argue. Compared to electric-powered appliances, gas burners are unquestionably more polluting. Induction cooktops—which use magnetic fields to heat pots quickly, rather than burning gas or using the resistance heating coils of conventional electric ranges—have been widely used in Europe for many years, and are now becoming more available in the US.

“Induction is both cleaner with fewer pollutant emissions and also the most efficient and least dangerous in terms of burns and fires,” said Brett Singer, “but cooking on induction still can produce pollutants that need to be vented.” Using a ventilation hood is essential with any cooking system, he emphasized.

We’re not accounting for what the pollution from gas stoves is doing to health costs, so we can’t monetize those.

Electric-powered induction cooktops may save energy and help homeowners breathe easier, but they are more expensive than conventional gas stoves. Right now, the only incentive program in California is a rebate of $100 to $750 from Sacramento’s municipal utility for homeowners who switch to an induction cooktop.

“We’re not accounting for what the pollution from gas stoves is doing to health costs, so we can’t monetize those,” Seals argued. If policymakers took those health costs into account, she added, the dollar value of all those avoided emergency room visits for asthma attacks and lost school and workdays could make wide-scale programs incentivizing adoption of induction cookers look like a bargain.

California is the birthplace of a growing movement by towns and cities to ban natural gas use in new construction. Nearly 40 cities and towns throughout the state have adopted ordinances mandating all-electric appliances in new residential buildings, with San Francisco among the most recent to do so. But those ordinances don’t touch the 70 million existing buildings in the US, including California’s 14 million homes—90% of which use natural gas in some form. Retrofitting those homes with electric heat pumps and water heaters and induction cooktops would be an expensive, politically-fraught undertaking.

Organizations such as the Sierra Club and the Natural Resources Defense Council are pushing for state and regional air quality management districts to put in place tighter limits on outdoor emissions from gas appliances. If that happens, it could drive up the costs of those appliances. As homeowners and landlords increasingly switch to electric alternatives for space heating and heating water, keeping the gas line to a building just to supply a stove will become too expensive to justify.

But without targeted incentives, most homeowners and renters won’t be able to afford new heat pumps and induction cookers, and will be stuck paying for increasingly costly gas hookups.

“People are generally not aware of this issue,” said Hamilton. “Even our asthma patients who we educate about this, they just nod. They’d take a free electric range in a minute. But there’s no incentive to do that. There’s no source of funding—that’s key.” The frustration was evident in his voice when he said, “this is just not a regulated area.”

In Massachusetts, Steve Jones’ efforts helped persuade more than 100 boards of health (representing more than half of the state’s population, and including those from the three biggest cities of Boston, Worcester, and Springfield) to write to Gov. Charlie Baker to express concerns about the health impacts of natural gas consumption and infrastructure, and helped secure the adoption of an unprecedented resolution from the Massachusetts Medical Society, the nation’s oldest, recognizing that gas stoves contribute to childhood asthma.

The interior air pollution from gas cooking stoves may contribute to higher rates of Covid-19.

But while these gestures might boost awareness, they haven’t precipitated any changes to the state’s building codes or official state health guidance, nor have they unlocked any resources to help lower-income households make the transition from gas to electric cooking.

Before the pandemic shut everything down, Jones would drive down I-91 to Springfield from his home near Northampton to meet with officials running the city’s Healthy Homes Program, which aims to help reduce environmental triggers of asthma in the home and provides zero-interest loans to upgrade housing for lower-income households.

The Asthma and Allergy Foundation of America ranks Springfield as the most challenging city in the country to live with asthma. Jones wanted to put them in touch with counterparts in Worcester, who were using Department of Housing and Urban Development funding to rehabilitate rental housing, including installing wiring to enable a switch to electric cooking.

Now those conversations are on hold, but the risks haven’t gone away, said Jones.

“Covid-19 has dramatically demonstrated the health threats of living in small, crowded housing, typically apartments,” he said. “The interior air pollution from gas cooking stoves may contribute to the higher rates of Covid-19 in Chelsea, Lynn, Worcester, and Springfield.”


Nearly a quarter-century ago, a commentary appeared in The Lancet, the highly respected British medical journal. “The relation between respiratory health and indoor pollution from [gas] appliances has received considerable attention during the past 25 years; both positive and negative associations have been reported,” the authors noted. “Nevertheless, as the researchers suggest, continued investigation of the role of gas appliances and NO2 in the development and aggravation of respiratory disease is clearly warranted.”

The authors were commenting on a study published in the same issue of The Lancet that tracked 15,000 adults in East Anglia, U.K., and found that women who cooked primarily with gas stoves had a significantly higher risk of asthma-like symptoms and reduced lung functions in tests than those who didn’t. (Intriguingly, they found no significant association among men, perhaps explained by the fact that women spent more time in the kitchen cooking, and in the home generally.) They concluded: “Although the issue of indoor gas appliances, NO2, and respiratory health is not new, this remains an extremely common, possibly increasing, exposure throughout the world. The stakes are high.”

Despite those high stakes, the issue has received scant attention from policymakers and public health authorities up to this day. The natural gas industry points to this fact as an indication that there is nothing for homeowners to worry about, and that its product is safe to burn in the home.

Audrey Casey, a spokesperson for the American Public Gas Association (APGA), a national trade group for municipally-owned gas utilities, flatly denied any link between gas cooking and asthma, despite the emerging consensus from the scientific community. “The risks to respiratory health from NO2 documented in the scientific literature are not associated with gas stoves,” Casey said in an email message. “The association between the presence of a natural gas cooking appliance along with the increases in asthma in children is not supported by data-driven investigations that control for other factors that can contribute to asthma and other respiratory issues.”

She also noted that the Consumer Product Safety Commission (CPSC), which oversees safety and performance standards for consumer appliances like water heaters, furnaces, and stoves, and the EPA “do not view gas ranges as a significant contributor to adverse air quality or a health hazard in their technical or public information literature, guidance, or requirements.”

While the EPA does not regulate indoor air quality, it does provide extensive information through its Indoor Air Quality program, based on its decades of analysis of the same pollutants found in outdoor air. The EPA includes NO2 on its list of asthma triggers; “unvented combustion appliances, e.g. gas stoves” is first on its list of primary sources of NO2 indoors.

“Existing regulations—including from the CPSC—have found no health or safety risk associated with normal use of gas appliances,” the APGA’s Casey added.

Writ large, the industry’s core response to the scientific indictments laid out in the Rocky Mountain Institute and UCLA reports might be summarized this way: If gas appliances are so dangerous, why aren’t they regulated more tightly?

But critics of the industry ask precisely the same question: Given the evidence, which has mounted for decades, why hasn’t the CPSC or the CDC taken any action to limit indoor pollution from gas appliances, or issue updated guidance to health professionals and homeowners?

One possible reason, experts say, is that it’s not clear which US federal agency is responsible for regulating indoor air. The EPA has the authority, under the Clean Air Act, to regulate outdoor air. Should setting standards for the air we breathe indoors be under the purview of a health-focused institution like the CDC? Or should the CPSC take the lead?

In 1985, the chair of the CPSC wrote to the EPA, requesting help in determining whether gas stoves and appliances produced dangerous levels of nitrogen dioxide, and whether it should set targets for their manufacturers. The EPA directed its Clean Air Scientific Advisory Committee, a panel of independent experts that reviews the latest science and issues recommendations on air quality standards, to address the question, which it did in a 37-page review on the health effects of exposure to NO2 from gas appliances. The committee characterized the evidence as “equivocal” and stopped short of recommending a standard, but recommended further investigation.

Other than replacement of gas stoves with electric stoves, fewer methods are currently available for indoor NO2 reduction.

Thirty-five years’ worth of subsequent investigation has yielded a large body of research confirming the risks, with little corresponding action from federal regulatory guardians of health and safety.

Change might be on the horizon. In an email message, Patty Davis, the deputy director of communications and press secretary for the CPSC, said that the agency was “aware of recent studies” and “looking at approaches for reviewing this latest research and understanding how this new information could be used to potentially update recommendations for indoor exposure levels and the development of new, or update of existing voluntary standards.” She noted that CPSC has, over the years, conducted emissions testing that led to the development of voluntary standards for nitrogen oxides from gas space heaters.

The CDC did not respond to a request for a telephone interview with a staff scientist, but in an email message, Ginger Chew, a deputy associate director for science within the CDC’s National Center for Environmental Health, said that, while the agency’s current guidance for health professionals on combustion sources and ventilation in the home was “up-to-date,” agency staff were nonetheless “actively reviewing the peer-reviewed literature” on indoor air quality and gas appliances. In the same email message, Chew also noted that one of the CDC’s scientists served on a recent expert working group investigating the effects of indoor environments on childhood asthma. Interestingly, that group’s 2017 report noted that, while HEPA filter technology has improved in recent years to capture particles in indoor air, only one technology offers similar promise on the cooking front: “Other than replacement of gas stoves with electric stoves,” the report stated, “fewer methods are currently available for indoor NO2 reduction.”

Until there’s more robust action from these agencies, Jones argues at the bare minimum doctors should be asking patients about the presence of gas appliances in their homes. He’s not alone: In a commentary published in September, one pediatrician in the Bay Area compared the risks associated with gas appliances to those posed by leaded gasoline until it was phased out in the 1980s.

“If a child with asthma is seen by a healthcare provider, the provider should ask about what kind of stove they have at home,” Jones said. “There’s absolutely enough evidence for that.”

But most parents are left to fend for themselves. Ellie Goldberg, who like Jones has worked to spread the word in Massachusetts on indoor gas pollution, agreed. As an advocate for children with chronic health conditions in the local school system in Newton, Massachusetts, she says she first became aware of the science connecting gas with asthma in the early 1980s, when she served on an asthma-focused subcommittee of the National Heart, Lung, and Blood Institute.

“I began seeing the literature develop about combustion byproducts indoors from gas appliances,” she said, “and that’s when I saw information on gas as one of the inflammatory triggers for asthma.”

When she moved with her two young daughters, one of whom has asthma, to a home in Newton in 1986—the same year the CPSC asked the EPA for guidance on the subject—she made the switch from gas to electric. “There was no way I was going to move into a house with gas,” she said. “You do everything you can as a parent to lower the risks and exposures.”

Goldberg, of course, was lucky enough to have had options and access to information. Over three decades later, many lower-income Americans, Seals noted, simply don’t.

“The idea that our homes are more polluted than outdoors, even in cities,” Seals said, “is just a staggering fact.”


This article was originally published on Undark. Read the original article.

Jonathan Mingle is a freelance writer and a 2020 Alicia Patterson Foundation Fellow. He is the author of “Fire and Ice: Soot, Solidarity, and Survival on the Roof of the World,” about the health and climate effects of black carbon pollution, and his work has appeared in The New York Times, The Boston Globe, Slate, Quartz, Atlas Obscura, and the Los Angeles Times, among other publications.

Taking fish out of fish feed can make aquaculture a more sustainable food source

Taking fish out of fish feed can make aquaculture a more sustainable food source

Pallab Sarker, Associate Research Professor of Environmental Studies, University of California, Santa Cruz     

 

<span class="caption">Farmed red tilapia, Thai Mueang, Thailand.</span> <span class="attribution"><a class="link rapid-noclick-resp" href="https://www.gettyimages.com/detail/photo/red-tilapia-fish-farming-tubtim-fish-economic-royalty-free-image/1201463699" rel="nofollow noopener" target="_blank" data-ylk="slk:Kittichai Boonpong / EyeEm via Getty Images">Kittichai Boonpong / EyeEm via Getty Images</a></span>
Farmed red tilapia, Thai Mueang, Thailand. Kittichai Boonpong/EyeEm via Getty Images
The big idea

 

Aquaculture, or fish farming, is the world’s fastest growing food production sector. But the key ingredients in commercial fish feed – fishmeal and fish oil – come from an unsustainable source: small fish, such as anchovies and herring, near the base of ocean food webs.

My colleagues and I have developed a high-performing, fish-free aquaculture feed that replaces these traditional ingredients with several types of microalgae – abundant single-celled organisms that form the very bottom of the food chain in fresh and saltwater ecosystems around the world. To test this approach, we developed our feed for Nile tilapia – the world’s second-most farmed fish, exceeded only by carp.

Our research showed that tilapia fed our fish-free diet grew significantly better, achieving 58% higher weight gain than tilapia fed conventional feed. The resulting cost per kilogram of tilapia raised on our feed was lower than for fish raised on conventional commercial feed. And our feed yielded a higher level of a key fatty acid that is important for human health, DHA omega-3, in the resulting tilapia fillets.

Infographic of marine food chain
Infographic of marine food chain
Why it matters

About 19 million tons of wild fish – some 20% of the total quantity caught around the world – are rendered into fish meal and fish oil every year, even though 90% of these harvested fish are fit for human consumption. Analysts project that aquaculture feed demands for fish meal and fish oil could outstrip the supply of small forage fish, also known as prey or bait fish, by 2037. If this happens, it could have disastrous consequences for human food security and marine ecosystems.

Aquaculture feeds can also contain soy and corn ingredients from industrial farms on land that generate large amounts of water pollution. Fish can’t fully digest these ingredients, so they end up in aquaculture wastewater. Just like wastewater from cattle or poultry farms, effluent from fish farms can be a serious pollution source. What’s more, these crops could be used for direct human consumption.

Handful of pelletized fish feed made from microalgae.
Handful of pelletized fish feed made from microalgae.

For all of these reasons, developing fish-free fish feed is a key leverage point for reforming aquaculture so that it helps to conserve natural ecosystems instead of damaging them. Reducing pressure on forage fish will strengthen global marine fisheries. Our work also shows that it is possible to improve the human health benefits of eating farmed tilapia by manipulating the fishes’ diet.

How we do our work

We developed our fish-free feed formula in a series of experiments over six years. First, we evaluated how well fish could digest specific varieties of marine microalgae. Then we conducted separate experiments to see how well fish grew using these individual ingredients as replacements for either fish meal or fish oil.

For this feed we used two types of marine microalgae. One is a waste product left over after another type of omega-3 fatty acid, called EPA, has been extracted from the microalga for use in human nutritional supplements. This is the first proof of concept for a tilapia feed that eliminates fish meal and fish oil while improving growth metrics and the resulting nutritional quality of the fish.

Our feed is a substantial improvement over other commercially available feed products. There are some existing fish-free feeds that use soy, corn and other plant-based ingredients, but terrestrial vegetable oils within these feeds lack long chain omega-3 fatty acids. As a result, they produce fish fillets with lower nutritional value.

Microalgae ingredients don’t have this problem. Researchers have been experimenting with using microalgae to replace either fishmeal or fish oil in aquaculture feeds, but there haven’t yet been any fully fish-free microalgae blend feeds available in the market. We hope that ours will be the first.

The other major challenge in developing a commercially successful fish-free feed is achieving a competitive edge over conventional feed on cost and fish growth performance. Our research showed promising results for these factors as well.

Farm employee scoops fish feed into pond
Farm employee scoops fish feed into pond
What’s next

We currently have a patent pending for our formula and hope to work with the aquafeed industry, ingredient suppliers and sustainable aquaculture entrepreneurs to bring it to market. The major challenge will be achieving a consistent ingredient supply in order to produce large quantities on an industrial scale.

We’re also working now to develop fish-free feeds for other aquaculture species, including salmonids, a group that includes trout and salmon. Unlike tilapia, which eat a primarily vegetarian diet, these species are predators, so farming them accounts for most of the fishmeal and fish oil used in aquaculture feeds. Successfully replacing fishmeal and fish oil with microalgae in salmonid feed would be a major advance toward more sustainable aquaculture.

Read more:

Pallab Sarker and other participants in the research described in this article have received funding from the U.S. Department of Agriculture; the Sherman Fairchild Professorship, Dean of the Faculty and Vranos family gift at Dartmouth College; the Dean of Social Sciences and Executive Vice Chancellor at the University of California Santa Cruz; and the National Sea Grant Aquaculture Federal Funding Opportunity.

Study: Birds Are Linked to Happiness Levels

EcoWatch

Study: Birds Are Linked to Happiness Levels

Carly Nairn                   December 8, 2020

Study: Birds Are Linked to Happiness Levels
A new study demonstrates the link between birds and happiness. TorriPhoto / Getty Images
A new study reveals that greater bird biodiversity brings greater joy to people, according to recent findings from the German Center for Integrative Biodiversity Research. In fact, scientists concluded that conservation is just as important for human well-being as financial security.

The study, published in Ecological Economics, focused on European residents, and determined that happiness correlated with a specific number of bird species.

“According to our findings, the happiest Europeans are those who can experience numerous different bird species in their daily life, or who live in near-natural surroundings that are home to many species,” says lead author Joel Methorst, a doctoral researcher at the Senckenberg Biodiversity and Climate Research Center, the iDiv and the Goethe University in Frankfurt.

The authors calculated that being around fourteen additional bird species provided as much satisfaction as earning an additional $150 a month.

For the study, researchers used data from the 2012 “European Quality of Life Survey” to explore the connection between species diversity around homes, towns and cites, and how it relates to satisfaction. More than 26,000 adults from 26 European countries were surveyed.

According to the study authors, birds are some of the best indicators of biological diversity in any given area because they are usually seen or heard in their environments, especially in urban areas. However, more bird species were found near natural green spaces, forested areas and bodies of water.

In the U.S., birding has become a more common and accessible hobby during the pandemic.

Although not new, thousands of amateurs and expert birders participate in Audubon’s long-running annual Christmas Bird Count, a three-week activity to count birds in a specific area for the group’s data compilation.

“Nature conservation therefore not only ensures our material basis of life, but it also constitutes an investment in the well-being of us all,” says Methorst.

Arctic Ocean: climate change is flooding the remote north with light – and new species

The Conversation

Arctic Ocean: climate change is flooding the remote north with light – and new species

At just over 14 million square kilometers, the Arctic Ocean is the smallest and shallowest of the world’s oceans. It is also the coldest. An expansive raft of sea ice floats near its center, expanding in the long, cold, dark winter, and contracting in the summer, as the Sun climbs higher in the sky.

Every year, usually in September, the sea ice cover shrinks to its lowest level. The tally in 2020 was a meagre 3.74 million square kilometers, the second-smallest measurement in 42 years, and roughly half of what it was in 1980. Each year, as the climate warms, the Arctic is holding onto less and less ice.

The effects of global warming are being felt around the world, but nowhere on Earth are they as dramatic as they are in the Arctic. The Arctic is warming two to three times faster than any other place on Earth, ushering in far-reaching changes to the Arctic Ocean, its ecosystems and the 4 million people who live in the Arctic.


This story is part of Oceans 21
Five profiles open our series on the global ocean, delving into ancient Indian Ocean trade networks, Pacific plastic pollution, Arctic light and life, Atlantic fisheries and the Southern Ocean’s impact on global climate. Look out for new articles in the lead up to COP26. Brought to you by The Conversation’s international network.

We bring the expertise of academics to the public.

Some of them are unexpected. The warmer water is pulling some species further north, into higher latitudes. The thinner ice is carrying more people through the Arctic on cruise ships, cargo ships and research vessels. Ice and snow can almost entirely black out the water beneath it, but climate change is allowing more light to flood in.

Artificial light in the polar night

Light is very important in the Arctic. The algae which form the foundation of the Arctic Ocean’s food web convert sunlight into sugar and fat, feeding fish and, ultimately, whales, polar bears and humans.

At high latitudes in the Arctic during the depths of winter, the Sun stays below the horizon for 24 hours. This is called the polar night, and at the North Pole, the year is simply one day lasting six months, followed by one equally long night.

Researchers studying the effects of ice loss deployed moored observatories – anchored instruments with a buoy — in an Arctic fjord in the autumn of 2006, before the fjord froze. When sampling started in the spring of 2007, the moorings had been in place for almost six months, collecting data throughout the long and bitter polar night.

What they detected changed everything.

A man on a boat stands with a torch, looking into the polar night.

The polar night can last for weeks and even months in the high Arctic. Michael O. SnyderAuthor provided
Life in the dark

At that time, scientists assumed the polar night was utterly uninteresting. A dead period in which life lies dormant and the ecosystem sinks into a dark and frigid standby mode. Not much was expected to come of these measurements, so researchers were surprised when the data showed that life doesn’t pause at all.

Arctic zooplankton — tiny microscopic animals that eat algae — take part in something called diel vertical migration beneath the ice and in the dead of the polar night. Sea creatures in all the oceans of the world do this, migrating to depth during the day to hide from potential predators in the dark, and surfacing at night to feed.

Organisms use light as a cue to do this, so they shouldn’t logically be able to during the polar night. We now understand the polar night to be a riot of ecological activity. The normal rhythms of daily life continue in the gloom. Clams open and close cyclically, seabirds hunt in almost total darkness, ghost shrimps and sea snails gather in kelp forests to reproduce, and deep-water species such as the helmet jellyfish surface when it’s dark enough to stay safe from predators.

For most of the organisms active during this period, the Moon, stars and aurora borealis likely give important cues that guide their behavior, especially in parts of the Arctic not covered by sea ice. But as the Arctic climate warms and human activities in the region ramp up, these natural light sources will in many places be invisible, crowded out by much stronger artificial light.

A band of turquoise light in the sky is reflected in the Norwegian fjord below.
The northern lights dance in the sky over Tromsø, Norway. Muratart/Shutterstock
Artificial light

Almost a quarter of all land masses are exposed to scattered artificial light at night, as it’s reflected back to the ground from the atmosphere. Few truly dark places remain, and light from cities, coastlines, roads and ships is visible as far as outer space.

Even in sparsely populated areas of the Arctic, light pollution is noticeable. Shipping routes, oil and gas exploration and fisheries extend into the region as the sea ice retreats, drawing artificial light into the otherwise inky black polar night.

A large ship covered in yellow lights illuminates the icy water.

Creatures which have adapted to the polar night over millions of years are now suddenly exposed to artificial light. Michael O. SnyderAuthor provided

 

No organisms have had the opportunity to properly adapt to these changes – evolution works on a much longer timescale. Meanwhile, the harmonic movements of the Earth, Moon and Sun have provided reliable cues to Arctic animals for millennia. Many biological events, such as migration, foraging and breeding are highly attuned to their gentle predictability.

In a recent study carried out in the high Arctic archipelago of Svalbard, between mainland Norway and the north pole, the onboard lights of a research vessel were found to affect fish and zooplankton at least 200 metres down. Disturbed by the sudden intrusion of light, the creatures swirling beneath the surface reacted dramatically, with some swimming towards the beam, and others swimming violently away.

It’s difficult to predict the effect artificial light from ships newly navigating the ice-free Arctic will have on polar night ecosystems that have known darkness for longer than modern humans have existed. How the rapidly growing human presence in the Arctic will affect the ecosystem is concerning, but there are also unpleasant questions for researchers. If much of the information we’ve gathered about the Arctic came from scientists stationed on brightly lit boats, how “natural” is the state of the ecosystem we have reported?

Seen from a sea ice floe, a large ship on the horizon beams white light into the sky.

Research in the Arctic could change considerably over the coming years to reduce light pollution. Michael O. SnyderAuthor provided

 

Arctic marine science is about to enter a new era with autonomous and remotely operated platforms, capable of operating without any light, making measurements in complete darkness.

Underwater forests

As sea ice retreats from the shores of Greenland, Norway, North America and Russia, periods with open water are getting longer, and more light is reaching the sea floor. Suddenly, coastal ecosystems that have been hidden under ice for 200,000 years are seeing the light of day. This could be very good news for marine plants like kelp – large brown seaweeds that thrive in cold water with enough light and nutrients.

Anchored to the sea floor and floating with the tide and currents, some species of kelp can grow up to 50 meters (175 feet) – about the same height as Nelson’s Column in Trafalgar Square, London. But kelp are typically excluded from the highest latitudes because of the shade cast by sea ice and its scouring effect on the seabed.

Large greeny-brown and frilled fronds of seaweed snake across a gravelly seabed.
Badderlocks, or winged kelp, off the coast of Nunavut in the Canadian Arctic. Ignacio Garrido/ArcticKelpAuthor provided

 

These lush underwater forests are set to grow and thrive as sea ice shrinks. Kelp are not a new arrival to the Arctic though. They were once part of the traditional Greenlandic diet, and polar researchers and explorers observed them along northern coasts more than a century ago.

Some species of kelp may have colonized Arctic coasts after the last ice age, or spread out from small pockets where they’d held on. But most kelp forests in the Arctic are smaller and more restricted to patches in deeper waters, compared to the vast swathes of seaweed that line coasts like California’s in the US.

A scuba diver swims through kelp fronds.
A diver explores a four-metre-high sugar kelp forest off Southampton Island, Canada. Ignacio Garrido/ArcticKelpAuthor provided

 

Recent evidence from Norway and Greenland shows kelp forests are already expanding and increasing their ranges poleward, and these ocean plants are expected to get bigger and grow faster as the Arctic warms, creating more nooks for species to live in and around. The full extent of Arctic kelp forests remains largely unseen and uncharted, but modelling can help determine how much they have shifted and grown in the Arctic since the 1950s.

A map of the Arctic Circle showing how kelp forests will expand further north as the world warms.

Known locations of kelp forests and global trends in predicted average summer surface temperature increase over next two decades, according to IPCC models. Filbee-Dexter et al. (2018)Author provided
A new carbon sink

Although large seaweeds come in all shapes and sizes, many are remarkably similar to trees, with long, trunk-like but flexible bodies called stipes. The kelp forest canopy is filled with the flat blades like leaves, while holdfasts act like roots by anchoring the seaweed to rocks below.

Some types of Arctic kelp can grow over ten meters and form large and complex canopies suspended in the water column, with a shaded and protected understorey. Much like forests on land, these marine forests provide habitats, nursery areas and feeding grounds for many animals and fish, including cod, pollack, crabs, lobsters and sea urchins.

A cloud of shrimp surrounds a large path of kelp.
Kelp forests offer lots of nooks and crannies and surfaces to settle on, making them rich in wildlife. Ignacio Garrido/ArcticKelpAuthor provided

 

Kelp are fast growers, storing carbon in their leathery tissue as they do. So what does their expansion in the Arctic mean for the global climate? Like restoring forests on land, growing underwater kelp forests can help to slow climate change by diverting carbon from the atmosphere.

Better yet, some kelp material breaks off and is swept out of shallow coastal waters and into the deep ocean where it’s effectively removed from the Earth’s carbon cycle. Expanding kelp forests along the Earth’s extensive Arctic coasts could become a growing carbon sink that captures the CO₂ humans emit and locks it away in the deep sea.

What’s happening with kelp in the Arctic is fairly unique – these ocean forests are embattled in most other parts of the world. Overall, the global extent of kelp forests is on a downward trend because of ocean heatwaves, pollution, warming temperatures, and outbreaks of grazers like sea urchins.

Unsurprisingly, it’s not all good news. Encroaching kelp forests could push out unique wildlife in the high Arctic. Algae living under the ice will have nowhere to go, and could disappear altogether. More temperate kelp species may replace endemic Arctic kelps such as Laminaria solidungula.

A bright orange crab nestles in a thicket of dark brown seaweed.
A crab finds refuge on Laminaria solidungula – the only kelp species endemic to the Arctic. Ignacio Garrido/ArcticKelpAuthor provided

 

But kelp are just one set of species among many pushing further and deeper into the region as the ice melts.

Arctic invasions

Milne Inlet, on north Baffin Island, Nunavut, Canada, sees more marine traffic than any other port in Arctic Canada. Most days during the open-water period, 300-metre-long ships leave the port laden with iron ore from the nearby Mary River Mine. Between 71 and 82 ships pass through the area annually, most heading to — or coming from ports in northern Europe.

Cruise ships, coast guard vessels, pleasure yachts, research icebreakers, cargo supply ships and rigid inflatable boats full of tourists also glide through the area. Unprecedented warming and declining sea ice has attracted new industries and other activities to the Arctic. Communities like Pond Inlet have seen marine traffic triple in the past two decades.

Ships anchored offshore in icy water with small group of passengers standing on a point of land.
Passengers from a cruise ship arrive in Pond Inlet, Nunavut. Kimberly HowlandAuthor provided

 

These ships come to the Arctic from all over the world, carrying a host of aquatic hitchhikers picked up in Rotterdam, Hamburg, Dunkirk and elsewhere. These species — some too small to see with the naked eye — are hidden in the ballast water pumped into on-board tanks to stabilize the ship. They also stick to the hull and other outer surfaces, called “biofouling.”

Some survive the voyage to the Arctic and are released into the environment when the ballast water is discharged and cargo loaded. Those that maintain their hold on the outer surface may release eggs, sperm or larvae.

Many of these organisms are innocuous, but some may be invasive newcomers that can cause harm. Research in Canada and Norway has already shown non-native invasive species like bay and acorn barnacles can survive ship transits to the Arctic. This raises a risk for Arctic ecosystems given that invasive species are one of the top causes for extinctions worldwide.

Expanded routes

Concern about invasive species extends far beyond the community of Pond Inlet. Around 4 million people live in the Arctic, many of them along the coasts that provide nutrients and critical habitat for a wide array of animals, from Arctic char and ringed seals to polar bear, bowhead whales and millions of migratory birds.

As the Arctic sea ice melts during the summer months, shipping routes are opening up along the Russian coast and through the Northwest Passage. Some say a trans-Arctic route might soon be navigable. Shutterstock 

 

 

 

As waters warm, the shipping season is becoming longer, and new routes, like the Northwest Passage and the Northern Sea Route (along Russia’s Arctic coast), are opening up. Some researchers expect a trans-Arctic route across the North Pole might be navigable by mid-century. The increased ship traffic magnifies the numbers and kinds of organisms transported into Arctic waters, and the progressively more hospitable conditions improve their odds of survival.

Prevention is the number one way to keep invasive species out of the Arctic. Most ships must treat their ballast water, using chemicals or other processes, and/or exchange it to limit the movement of harmful organisms to new locations. Guidelines also recommend ships use special coatings on the hulls and clean them regularly to prevent biofouling. But these prevention measures are not always reliable, and their efficacy in colder environments is poorly understood.

The next best approach is to detect invaders as soon as possible once they arrive, to improve chances for eradication or suppression. But early detection requires widespread monitoring, which can be challenging in the Arctic. Keeping an eye out for the arrival of a new species can be akin to searching for a needle in a haystack, but northern communities may offer a solution.

Researchers in Norway, Alaska and Canada have found a way to make that search easier by singling out species that have caused harm elsewhere and that could endure Arctic environmental conditions. Nearly two dozen potential invaders show a high chance for taking hold in Arctic Canada.

The red king crab was intentionally introduced to the Barents Sea in the 1960s, but is now spreading south along the Norwegian coast. Shutterstock

 

Among these is the cold-adapted red king crab, native to the Sea of Japan, Bering Sea and North Pacific. It was intentionally introduced to the Barents Sea in the 1960s to establish a fishery and is now spreading south along the Norwegian coast and in the White Sea. It is a large, voracious predator implicated in substantial declines of harvested shellfish, sea urchins and other larger, slow moving bottom species, with a high likelihood of surviving transport in ballast water.

Another is the common periwinkle, which ruthlessly grazes on lush aquatic plants in shoreline habitats, leaving behind bare or encrusted rock. It has also introduced a parasite on the east coast of North America that causes black spot disease in fishes, which stresses adult fishes and makes them unpalatable, kills juveniles and causes intestinal damage to birds and mammals that eat them.

Tracking genetic remnants

New species like these could affect the fish and mammals people hunt and eat, if they were to arrive in Pond Inlet. After just a few years of shipping, a handful of possibly non-native species have already been discovered, including the invasive red-gilled mudworm (Marenzellaria viridis), and a potentially invasive tube dwelling amphipod. Both are known to reach high densities, alter the characteristics of the seafloor sediment and compete with native species.

An orange ship sits in icy water with a rocky slope behind it.
A cargo ship passes through Milne Inlet, Nunavut. Kimberly HowlandAuthor providedBaffinland, the company that runs the Mary River Mine, is seeking to double its annual output of iron ore. If the expansion proceeds, up to 176 ore carriers will pass through Milne Inlet during the open-water season.

 

Although the future of Arctic shipping remains uncertain, it’s an upward trend that needs to be watched. In Canada, researchers are working with Indigenous partners in communities with high shipping activity — including Churchill, Manitoba; Pond Inlet and Iqaluit in Nunavut; Salluit, Quebec and Nain, Newfoundland — to establish an invasive species monitoring network. One of the approaches includes collecting water and testing it for genetic remnants shed from scales, faeces, sperm and other biological material.

A group of people sit on shore learning to use sampling equipment.
Members of the 2019 field team from Pond Inlet and Salluit filter eDNA from water samples collected from Milne Inlet. Christopher MckindseyAuthor provided

 

This environmental DNA (eDNA) is easy to collect and can help detect organisms that might otherwise be difficult to capture or are in low abundance. The technique has also improved baseline knowledge of coastal biodiversity in other areas of high shipping, a fundamental step in detecting future change.

Some non-native species have already been detected in the Port of Churchill using eDNA surveillance and other sampling methods, including jellyfish, rainbow smelt and an invasive copepod species.

Efforts are underway to expand the network across the Arctic as part of the Arctic Council’s Arctic Invasive Alien Species Strategy to reduce the spread of invasive species.

The Arctic is often called the frontline of the climate crisis, and because of its rapid rate of warming, the region is beset by invasions of all kinds, from new species to new shipping routes. These forces could entirely remake the ocean basin within the lifetimes of people alive today, from frozen, star-lit vistas, populated by unique communities of highly adapted organisms, to something quite different.

The Arctic is changing faster than scientists can document, yet there will be opportunities, such as growing carbon sinks, that could benefit the wildlife and people who live there. Not all changes to our warming world will be wholly negative. In the Arctic, as elsewhere, there are winners and losers.

A note from our editor’s mother

My daughter Beth leads the team of experienced editors working with experts to share fact-based journalism with readers like you. If you read this website, you know what good work they do. So please help them raise up the voices of scholars to drown out the loud voices shouting lies (she was never a shouter growing up). Thank you!

Terri Daley

Mother of Editor and GM Beth Daley

Saskatchewan driller hits ‘gusher’ with ground-breaking geothermal well that offers hope for oil workers

Financial Post

Saskatchewan driller hits ‘gusher’ with ground-breaking geothermal well that offers hope for oil workers

A first for Canada and the world, the well can produce enough electricity to power 3,000 homes

CALGARY — A small, Saskatoon-based company has drilled and fracked the world’s first 90-degree horizontal well for geothermal power in a potentially landmark move that signals the arrival of a new energy source in Canada and provides fresh opportunities for oil and gas workers to apply their skills in renewable power. 

No company in Canada has produced electricity from geothermal heat, but Deep Earth Energy Production Corp. chief executive officer Kirsten Marcia told the Financial Post that there’s a “big, big future for geothermal power in Western Canada,” as demonstrated by the results of the first ever horizontal geothermal well, which is also the deepest horizontal well ever drilled in Saskatchewan.

“We were looking for a way to explain to people that we drilled a gusher,” said Marcia, a geologist who worked in the mining and petroleum industries before pioneering a geothermal business in Saskatchewan. In the oil and gas world, a “gusher” is an extremely productive well that pumps substantial volumes of oil and gas.

The well is a first for the global geothermal industry

In Canada’s nascent geothermal power industry, Deep’s “gusher” can produce steaming-hot water and brine with a temperature of 127 degrees centigrade at a rate of 100 litres per second. Marcia said those flow rates mean the well will actually be limited by the hardware, such as pump capacity, that are connected to the wellhead. She said the well, called the Border-5HZ well, is capable of producing 3 megawatts of renewable, reliable electricity, enough to power 3,000 homes.

The well will form part of a larger 20MW geothermal power project, which is expected to commence construction in 2023 in southern Saskatchewan close to the U.S. border.

The well is also a first for the global geothermal industry.

DEEP Earth’s Border-5HZ well in Saskatchewan is capable of producing 3 megawatts of renewable, reliable electricity, enough to power 3,000 homes. PHOTO BY DEEP EARTH ENERGY PRODUCTION CORP.

 

Directional geothermal power wells have been drilled in California, but Marcia said those were drilled at a 75-degree angle, rather than being truly horizontal. Her company’s Border-5HZ well was drilled into the earth at a depth of 3,450 metres before turning at a 90 degree angle and drilling through sedimentary rock along a 2,000-metre lateral route.

“This is a sedimentary geothermal project. There aren’t a lot of them in the world,” Marcia said, noting that most geothermal power projects, including those in world-leading Iceland, drill vertically into volcanic rock formations. “In terms of drilling into a sedimentary basin, you’re drilling into sedimentary units that are like a stack of pancakes.”

Deep is also responsible for the deepest vertical well ever drilled in Saskatchewan, after announcing in Nov. 2018 it had drilled a 3,530-metre well.

Governments in Alberta and Saskatchewan have been revamping regulations for drilling and for power generation in an attempt to stimulate geothermal power investment in their provinces partly because the geothermal industry uses many of the same skills as the existing oil and gas industry.

This week, Alberta MLAs passed legislation that will allow the province’s energy regulator to develop a new framework for geothermal wells to be licensed and drilled in the province. The bill is considered a way to keep oilfield services workers, such as drillers, working as investment in renewable energy is projected to rise in the coming years.

Everything we’re doing is figuratively and literally on the backs of these highly skilled oilfield workers. We couldn’t do this without this expertise in this part of the world

DEEP EARTH ENERGY CEO KIRSTEN MARCIA

While other geothermal wells have been drilled in Canada previously to channel heat directly from the earth, Deep and a handful of other companies are among the first in the country to use the earth’s heat to generate electricity.

In Alberta, Calgary-based oil and gas producer Razor Energy Corp. is working on a geothermal project north of Edmonton that would retrofit existing wells to produce 3MW to 5MW of geothermal power.

Near Fort Nelson, B.C., a natural gas-rich town, a non-profit research association called Geoscience BC is undertaking a feasibility study of the Clark Lake Geothermal project that would repurpose a gas field to produce geothermal power.

Kirsten Marcia, president and CEO of Deep Earth Energy Production Corp. PHOTO BY TROY FLEECE/POSTMEDIA

 

At Deep, Marcia said it’s very difficult to repurpose existing oil and gas wells to produce geothermal power because the diameters of most existing wells are too narrow for the tubing that geothermal wells need to pump water in a cycle through the earth’s crust.

However, geologists have identified multiple locations in Western Canada to produce geothermal power and use existing oil and gas skills in renewable power production, Marcia said.

Over 100 oilfield workers were on site to drill and hydraulic-fracture her company’s horizontal well in southern Saskatchewan in September and October, including a drilling crew from Houston-based Weatherford International Plc, and a pressure-pumping team from Saskatchewan’s Element Technical Services Inc.

“It’s amazing. Everything we’re doing is figuratively and literally on the backs of these highly skilled oilfield workers. We couldn’t do this without this expertise in this part of the world,” said Marcia.

She added that the project was de-risked in part by funding from the federal government, which committed $25.6 million in funding in January 2019 for the project. All told, the geothermal power project is expected to cost $51 million.

Army Corps of Engineers issues Enbridge permit for $2.6B pipeline across northern Minnesota

Star Tribune

Army Corps of Engineers issues Enbridge permit for $2.6B pipeline across northern Minnesota

The permit is last big hurdle for the construction project, which will be one of largest in recent history for Minnesota.

The Corps decision paves the way for Calgary-based Enbridge to begin building the pipeline as early as next month. It will be one of the largest Minnesota construction projects in recent history and is expected to employ 4,000 workers.

“This decision is based on balancing development with protecting the environment,” Col. Karl Jansen, St Paul District commander, said in a statement. “Our decision follows an exhaustive review of the application and the potential impacts associated with the construction of the pipeline within federally protected waters.”

The Corps’ blessing was expected after the Minnesota Pollution Control Agency (MPCA) this month approved related construction permits for the pipeline, a replacement for Enbridge’s current Line 3.

The federal permit, issued by the Army Corps’ St. Paul district, covers construction impacts to myriad water bodies in Minnesota. The pipeline will ferry heavy Canadian oil across northern Minnesota to Enbridge’s terminal in Superior, Wis.

The 340-mile new pipeline will cross 212 streams and will affect more than 700 acres of wetlands in Minnesota — the reason many environmental groups have fought the project throughout the regulatory process.

“Enbridge has now received all remaining federal permits required for replacing Line 3, an essential maintenance project,” the Calgary-based company said in a statement.

The MPCA must still grant a stormwater drainage permit to Enbridge, a more routine approval that’s expected in the coming weeks. Enbridge is also waiting on a final construction authorization from the Minnesota Public Utilities Commission (PUC), which already has approved the project.

“We are prepared to start construction as soon as these are in hand,” Enbridge said.

The Army Corps was waiting for the MPCA to act on the more sweeping pollution permits before making its decision. The MPCA two weeks ago granted water quality permits related to Line 3 construction.

The pipeline has been winding through the Minnesota regulatory process for six years. The PUC, the state’s primary regulator of pipelines, approved the pipeline in February for the second time after a court sent it back to the panel for changes in the project’s environmental impact statement.

Environmental groups and Indian bands opposing Line 3 have already appealed the PUC’s decision to a state appellate court, and petitions to overturn the Corps’ permits may be in the offing, too.

“It’s tragic but it’s not a surprise that the Trump administration would approve these permits regardless of the water quality impacts from the pipeline, and during a time when a pandemic is sweeping across the North Country with workers already here,” Winona LaDuke, head of Indigenous environmental group Honor the Earth, said in a statement. “The tribes and others will surely sue and we will see them in court.”

Environmental groups and some Indian bands have said the pipeline — which follows a new route — will open a new region of pristine waters to the prospect of oil spills, as well as exacerbate climate change by allowing for more oil production.

Enbridge has said the new pipeline is a critical safety enhancement. The current Line 3 is so corroded it’s running at only half capacity. The new pipeline would restore full oil flow.

Jansen said the Army Corps staff consulted all parties on Line 3, working “deliberately and extensively with our federal and state partners, federally recognized tribes, environmental organizations and the applicant.”

Meet the South Poll cow: the healthier, naturally raised cattle of the future?

Meet the South Poll cow: the healthier, naturally raised cattle of the future?

Georgie Smith                      November 25, 2020

 

Missouri rancher Greg Judy spots a six-month-old South Poll heifer calf in his herd that is a prime example of what he calls a “good doing cow”. A cow that will “do good” on grass alone.

Related: ‘In the sun they’d cook’: is the US south-west getting too hot for farm animals?

She’s got a “big butt”, Judy says, meaning wide hips that will help her easily bear calves when grown. She sports a shiny, slick red hide that flies avoid landing on; cows stressed from fly bites – Judy has seen hundreds on a single cow – don’t grow well. She has a large “barrel” or gut, meaning enough stomach capacity to store large amounts of grass, which she will convert to energy and will keep her in good health, even during the winter with no extra feed. “This is the kind of heifer you want,” Judy says. “You can build a herd out of those.”

Judy raises cattle in a highly–managed, grass-only system that he believes is better for his cows and the environment. His 300-plus herd is kept together in a dense group, and moved often – Judy moves his cattle twice a day to fresh paddocks – creating a symbiotic relationship between cows and grasslands that soil scientists are finding encourages soil health and rapid grass growth.

But Judy has learned not all cows thrive on grass alone, especially the type of cattle favored by a US ranching industry that has grown largely dependent on feeding cattle grain rations.

In Judy’s system, those “common cows”, as he calls them, looked like they had been starved six months after he put them on a grass-only diet. Instead, Judy found success – after nearly going bankrupt in 1999 trying to raise cattle the conventional way – utilizing intensive, grass-based management with cows that had the “grass genetics” to thrive.

“At the end of the day, the money comes from animals that can excel on a grass diet,” says Judy, referring to the lower costs of raising cattle with a genetic predisposition to thrive on grass, since they don’t require the grain, growth hormones and antibiotics often used in traditional cattle ranching.

It’s a counterintuitive problem, considering cows evolved to eat grass. But today, approximately 97% of US beef cows spend the last four to six months in confined feedlots where they are fed grain rations until slaughter. Before that, they spend most of their lives out on the pasture, but even then some ranchers feed them grain to keep their weight up through winter or during stressful times like calving.

Meanwhile, the grass-only beef market is small, but growing rapidly, according to a report by Stone Barns Center. The intensively managed grazing Judy employs is a supercharged version of traditional cattle-grazing techniques. By moving his cows often, they do not have a chance to damage the grass by eating it too short. Instead, they encourage healthy root development increasing soil health, which some scientists have found allows the soil to capture and store carbon from the atmosphere – a process known as carbon sequestration.

This heavily managed grazing style – also called holistic grazing – is part of a growing worldwide interest in “regenerative agriculture”. By promoting multiple practices that build soil health, regenerative agriculture has been said to improve agricultural lands and ultimately sequester carbon, according to Rattan Lal PhD, an Ohio State University soil scientist and the 2020 World Food Prize winner.

But the growth of regenerative grazing systems has been slow, in part because, as the cattle industry turned to feeding grain, ranchers ended up breeding fewer cows that could thrive on grass alone, says Richard Teague PhD, a range ecologist with the Texas A&M University Agrilife Research center. Ranchers like Judy were put in a pickle, without the cows appropriate for their grass-only systems.

“People wanted to feed corn, [so] they bred huge animals that require very big inputs of corn and also pharmaceuticals,” says Teague. He argues that raising “cattle like that” comes at the expense of the health of consumers – and the health of the soil that nurtures them. “We have to go to animals that we know thrive under good management.”

The traditional ranching industry denies the charge that grass-raised cows are better for the climate than their grain-fed product. In a 2017 study by Oklahoma State University researchers found that grain-fed cattle – with their shorter lifespans – resulted in a 18.5 to 67.5% lower carbon footprint compared with grass-finished beef.

Meanwhile, a 2017 report from the Food, Climate and Research Network challenged the idea that grass-fed beef can be good for the environment at all, saying there was no evidence that grazing cattle helps sequester carbon except under the most ideal conditions.

However, Teague argues, “It’s not the cow, it’s the how.” A 2015 study in Georgia of dairy cows in an intensively grazed system recorded eight tons of carbon sequestered per hectare annually. The intensive livestock grazing systems such as Judy uses are one of the best ways within agricultural systems to sequester carbon, according to Teague. “Under decent management, sequestration exceeds emissions, and the better the grazing management, the more it exceeds it.”

For Judy, it comes down to raising cattle in a system that works with nature instead of against it. But to do that, he also had to find the best cattle to thrive in his environment. For him, that perfect cow is the South Poll.

A relative newcomer to the beef cattle scene, the South Poll is a small-framed, stout, highly fertile red cow, well adapted to hot and humid conditions. It has good mothering instincts that have earned it the nickname the “southern mama cow”. The breed also has a rock star – or at least, country music star – cachet; it was originally developed in the 1990s by Teddy Gentry, the bass player for the country music group Alabama.

Judy is far from alone in his enthusiasm for this up-and-coming breed. In mid-September, South Poll cattle fans from all over the US showed up in Copan, Oklahoma, for the annual South Poll cattle auction. The cows are becoming increasingly popular with grass-focused ranchers – especially in the south-eastern and mid-western US where the cattle are best adapted – according to Ann Demerath, secretary of the South Poll Grass Cattle Association.

Some of the animals purchased at the auction may be cross-bred with other cattle breeds. Ranchers hope to use the South Poll genes to adapt their existing cattle to do better on a grass diet, Judy says. He advises ranchers to start by purchasing the “best South Poll bull you can afford” and breed it to the best females in their existing herd. Then, ranchers should select the best females from that generation and breed those with a South Poll sire – a technique called “line-breeding” that quickly focuses on desirable traits without risking genetic defects.

Judy also advises ranchers to cull – or remove – any animals that don’t fit their standards for health and disposition, even if they “look at you funny”, from their breeding stock. His mantra? “You’ll never have a herd any better than what you are willing to cull for.”

Relentlessly selecting for the best-adapted cows within his own system has allowed Judy to produce South Poll mother cows so well-adapted that they stay healthy through the winter. That means, unlike most ranchers, Judy can give the mothers more time with their calves during the winterwhich gives those calves an extra boost of growth and leaves him with a stronger, bigger calf in the spring.

For Judy, that is the goal – a cow that needs nothing but well-managed grass, passing their health and wellbeing on to the next generation.

“The animals,” Judy says, “are just healthy.”

A destructive legacy: Trump bids for final hack at environmental protections

A destructive legacy: Trump bids for final hack at environmental protections

Oliver Milman                       
<span>Photograph: Nicholas Kamm/AFP/Getty Images</span>
Photograph: Nicholas Kamm/AFP/Getty Images

 

Donald Trump is using the dying embers of his US presidency to hastily push through a procession of environmental protection rollbacks that critics claim will cement his legacy as an unusually destructive force against the natural world.

Related: Trump officials rush plans to drill in Arctic refuge before Biden inauguration

Trump has yet to acknowledge his election loss to president-elect Joe Biden but his administration has been busily finishing off a cavalcade of regulatory moves to lock in more oil and gas drilling, loosened protections for wildlife and lax air pollution standards before the Democrat enters the White House on 20 January.

Trump’s interior department is hastily auctioning off drilling rights to America’s last large untouched wilderness, the sprawling Arctic National Wildlife Refuge found in the tundra of northern Alaska. The refuge, home to polar bears, caribou and 200 species of birds, has been off limits to fossil fuel companies for decades but the Trump administration is keen to give out leases to extract the billions of barrels of oil believed to be in the area’s coastal region.

The leases could result in the release of vast quantities of carbon emissions as well as upend the long-held lifestyle of the local Gwich’in tribe, which depends upon the migratory caribou for sustenance. Several major banks, fiercely lobbied by the Gwich’in and conservationists, have refused to finance drilling in the refuge but industry groups have expressed optimism that the area will be carved open.

An airplane flies over caribou on the coastal plain of the Arctic national wildlife refuge in north-east Alaska.
An airplane flies over caribou on the coastal plain of the Arctic national wildlife refuge in north-east Alaska. Photograph: US Fish and Wildlife Service/AP

 

The administration is also opening the way for drilling around the Chaco Canyon National Historical Park, considered a sacred area by the native Navajo and Pueblo people who live near the New Mexico site and has targeted a linchpin environmental law, known as the National Environmental Policy Act, to allow more logging and road-building in national forests.

Trump has previously shrunk federally-protected areas as part of an “energy dominance” mantra that the president claims will bolster the US economy.

Meanwhile, safety rules for offshore drilling, put in place after the disastrous 2010 BP oil spill in the Gulf of Mexico, are being watered down. The risks of a catastrophic, unrestrained spill are highest in the Arctic, where retreating sea ice is encouraging some fossil fuel firms to move into a region largely devoid of clean-up and rescue infrastructure.

The Trump administration is is also maintaining air quality standards widely condemned by experts as being insufficient to protect communities from sooty pollution that comes from cars, trucks and heavy industry. Many cities in the US are riven with environmental injustices, where poorer communities of color are routinely placed in proximity of industrial plants, highways and other sources of pollution.

Vehicles drive on the 101 freeway in Los Angeles, California.
Vehicles drive on the 101 freeway in Los Angeles, California. Photograph: Robyn Beck/AFP/Getty Images

 

The regulatory rampage extends to creatures from the skies to the prairies to the oceans – fines for people who kill migratory birds are being reviewed while the US Navy has been given latitude to inadvertently harass endangered whales with noise from explosions and speeding vessels during war game exercises along the west coast.

A plan to slash protections for sage grouse across the US west has been finalized, placing the habitat of the once-common bird, about the size of a chicken and known for its flamboyant mating dances, at risk. “These guys are hellbent on turning over the last refuges of the vanishing greater sage grouse to drilling, mining and grazing,” said Michael Saul, a senior attorney at the Center for Biological Diversity. “It’s disgusting, transparent and illegal.”

The Trump administration spent four years assaulting every protection for our air, water, lands, wildlife and climate

Jill Tauber

The actions of the exiting administration will have “extremely damaging environmental consequences”, said Richard Revesz, a professor of environmental law at New York University. “Trump’s counterproductive actions have allowed the climate crisis to intensify and put the health of many Americans, especially in the most vulnerable communities, at risk by ignoring threats from pollution,” he added.

The scorched earth approach of Trump’s final months will further exacerbate a four-year legacy where climate policies have been dismantled, clean air and water rules scaled back and legions of demoralized federal government scientists sidelined or decided to quit.

“The Trump administration spent four years assaulting every protection for our air, water, lands, wildlife and climate,” said Jill Tauber, vice-president of litigation at Earthjustice, a non-profit law organization.

People visit Griffith Observatory on a day rated &#x002018;moderate&#x002019; air quality in Los Angeles, California, in June 2019.
People visit Griffith Observatory on a day rated ‘moderate’ air quality in Los Angeles, California, in June 2019. Photograph: Mario Tama/Getty Images

Leah Donahey, legislative director at the Alaska Wilderness League, added: “No administration has been worse for our environment or our nation’s public health than this one.”

Biden will be able to reverse some of Trump’s actions and has vowed to limit drilling on federal land as well as to rejoin the Paris climate agreement, which the incumbent has removed the US from. Biden has called the climate change an “existential threat” in the wake of a year of fierce wildfires in California and a record number of hurricanes in the Atlantic, but his ambition to pass sweeping climate legislation hinge upon a US senate that, with looming special elections in the state of Georgia, appears likely to remain in Republican control.

Any successful remediation of the rollbacks will also have to survive as flurry of lawsuits, with the US supreme court now titled decisively in a conservative direction. All of this will soak up time during a period where scientists say planet-heating emissions must be cut rapidly to avoid the worst ravages of the climate crisis. “Trump’s legacy on environmental issues will be less about lasting policy changes,” said Revesz, “and more about lost time and missed opportunities.”

Wind and solar now cheaper than natural gas

Wind and solar now cheaper than natural gas

But before you get too excited and decide to cut off your natural gas supply, what hasn’t changed is the unreliability of both solar and wind

 

We all remember the disturbing stories coming out of Europe as little as two years ago called the heat or eat phenomenon. The push towards renewable energy contributed to large spikes in electricity costs that seniors and other people on low incomes in the U.K., in particular, were forced to choose between heating their homes or eating.

Even in Ontario, that province’s push under previous provincial governments to bring in more solar and wind power caused prices to rise so much that it helped lead to the defeat of Kathleen Wynne’s provincial Liberal government.

According to a new report from the University of Calgary, however, that era of high-cost renewable energy is over.

The School of Public Policy report on energy and environmental policy trends, Cheap Renewables Have Arrived, has found that solar and wind power prices have plunged so precipitously that they are now less expensive than efficient natural gas plants.

Recent analysis shows that over the past 10 years, wind costs have fallen by 70 per cent and solar by 90 per cent.

“Perhaps more significantly, the levelized cost of wind and solar — a measure which includes cost to construct and operate power plants — has now reached parity with the marginal cost of efficient natural gas plants,” write co-authors Nick Schumacher, Victoria Goodday, Blake Shaffer and Jennifer Winter.

“This suggests building new renewables is now cheaper than operating existing fossil power plants.”

Shaffer, an energy economist and an assistant professor of economics, says the perception for people who aren’t “electricity nerds” is that solar and wind power is a kind of “boutique power” — costly and niche.

“For many people who are thinking back about five years ago, certainly 10 years ago, and hearing about the cost of solar and wind and, you know, runaway electricity prices in Ontario, we still have that in mind because that’s not long ago,” said Shaffer during a Wednesday interview. “But it’s just changed so dramatically that’s no longer the case. Wind and solar is now cheaper than natural gas.”

Now, before you get too excited and decide to cut off your natural gas supply, what hasn’t changed is the unreliability of both solar and wind. Basically, you only get wind power when the wind blows and solar power when the sun shines.

But Shaffer says with more countries committing to net-zero emissions targets — including  Prime Minister Justin Trudeau’s announcement on Thursday  that pledged Canada to net-zero greenhouse gas emissions by 2050 — the push will be on to find ways to store this “zero-emission power” to be used when demand is highest — primarily through batteries, which are currently costly and not so green.

“Despite their low costs, wind and solar still have a long way to go before they are the dominant sources of energy,” states the report.

“In 2018, renewables accounted for only 8.5 per cent of total global energy supply. Despite their small share of supply, renewable energy investment growth — 97 per cent of which is in wind and solar — is outpacing any other energy source at 7.6 per cent per year.

The report points out that even the International Energy Agency’s World Energy Outlook 2020 report — which tends to be highly conservative — declared: “Solar is the new king of electricity.”

Shaffer says the rapid decline in the cost of solar panels was caused by the demand for them in Germany, California and other European countries and particularly now that China has taken the lead on production.

“So, the renewables are now the cheapest in terms of producing electricity, but it still doesn’t give us the on-demand power we want. And so just looking at cost alone isn’t fair. We need to figure out how to turn that raw energy into on-demand power.”

Shaffer notes that just recently TransAlta put in a large Tesla battery to store renewable energy and California and South Australia are doing the same.

He anticipates that natural gas will continue to play an important role in electrification to fill in the valleys caused by the intermittent nature of solar and wind for some time to come.

Solar panels atop the Southland Leisure Centre in Calgary in 2014. At the time, it was the city’s largest solar array. PHOTO BY POSTMEDIA ARCHIVES

 

In October, Premier Jason Kenney announced a new strategy for Alberta’s massive 300-year supply of natural gas, including net-zero hydrogen exports, something that Shaffer believes will be in high demand in the world.

Indeed, the hydrogen industry is projected to be worth $2.5 trillion by 2050, according to the Hydrogen Council, a global group of corporate executives encouraging investment in the hydrogen economy.

So, are solar and wind the game-changers that replaces oil and gas?

“No, they’re not,” says Shaffer. “It’s not the same scale. But what it is is it’s a great opportunity to replace a lot of generation to reduce emissions at really low to no cost.”

He says Alberta is “blessed with all of these great energy resources, and it just so happens that we also have some of the best wind resources in Canada. You go down to Pincher Creek, you’ll agree with me. We also have the best solar resources in Canada, us and southern Saskatchewan.”

“There’s nowhere cheaper in Canada to build solar and wind than in Alberta.”

The greening of the electrical grid no longer will force people to choose between heating or eating. It will, hopefully, one day soon be about cleaner air and net-zero greenhouse gas emissions at a reasonable cost.

Alberta sees an energy transition ‘happen before our eyes’

Varcoe: Alberta sees an energy transition ‘happen before our eyes’

For the 1,000 residents of Fort Chipewyan, it has already started to arrive.Earlier this week, the community officially announced the completion of a new solar project that will generate up to 25 per cent of its electricity needs.

The northern community isn’t connected to the province’s power grid; the nearest tie-in to Alberta’s electricity system is 150 kilometres away.

Solar energy will help reduce Fort Chipewyan’s reliance on diesel that can only be trucked in on an ice road during the winter.

“Knowing that we have a different option in place of diesel fuel, it’s quite exciting. The opportunities are there for jobs and a cleaner way of heating our community,” Blue Eyes Simpson, vice-president of the Fort Chipewyan Metis Association, said Thursday in an interview.

“We’ve shown the world things like this can happen, even in the smallest of communities.”

The project, a partnership involving ATCO Ltd. and Three Nations Energy (3NE) GP Inc., is noteworthy for a number of reasons. It’s the largest remote off-grid solar generating development in the country.Using solar power will reduce greenhouse gas emissions by cutting local diesel consumption each year by an estimated 800,000 litres.

A fuel truck drives down the winter ice road from Fort McMurray to Fort Chipewyan in Northern Alberta on February 4, 2015. The 200-km temporary road typically opens mid-December and closes mid-March depending on the weather. PHOTO BY RYAN JACKSON/POSTMEDIA

 

The Athabasca Chipewyan First Nation (ACFN), Fort Chipewyan Metis Association and Mikisew Cree First Nation are joint partners in 3NE, which owns the 2,200-kW solar farm located near the community’s airport.

The $7.8-million project, which included funding from the province and Ottawa, will generate about $200,000 to $250,000 annually in revenues, said Jason Schulz, 3NE president and the ACFN’s director of strategic advisory services.

ATCO built a 600-kW solar farm last year that’s adjacent to the larger facility and both developments will feed the company’s 1.5 megawatt-hour battery storage system.

“It really was a way to help the community achieve their climate change goals … and have less trucks rolling diesel into the community,” said Melanie Bayley, ATCO’s senior vice-president.

“This time of year, there is not a lot of sunshine. But come the summer months, there’s a great deal of solar potential there.”

The project also speaks to the ongoing energy evolution and efforts in Alberta to decarbonize.

Several oilsands producers, including Cenovus Energy and Canadian Natural Resources, have set goals to achieve net-zero emissions in three decades.

The cost of renewable energy technology continues to drop. Alberta, with strong wind and solar resources, is attracting outside investment.“We certainly are seeing the energy transition happen before our eyes,” said Bayley.

Earlier this month, a report by International Energy Agency said wind, solar and other renewable sources will make up almost 90 per cent of the global increase in total power capacity this year.

“Solar … and onshore wind are already the cheapest ways of adding new electricity-generating plants in most countries today,” the report stated.

Canada’s first wind-energy instalment, built in 1993, is nestled in the Alberta Rockies overlooking Pincher Creek. PHOTO BY POSTMEDIA ARCHIVE

 

In Alberta, as coal-fired power generation is being phased out, much of it is being replaced by natural gas, which generates fewer emissions and can back up intermittent renewable supply.

A number of renewable energy projects are also moving ahead, including the largest solar development in the country.

The Travers Solar Project, southeast of Calgary in Vulcan County, will generate 465 megawatts (MW) of electricity from 1.5 million solar panels once it’s built.

Construction on the $750-million Travers project, which is being developed by Calgary-based Greengate Power Corp., is expected to start in the first half of next year, said CEO Dan Balaban.

He noted a push by companies to source their electricity needs from clean energy will drive future renewable expansion in Alberta, which has the only deregulated electricity market in Canada.

“The energy discussion has been way too polarized in his country. It’s been framed as oil and gas versus renewables and I really believe it is oil and gas — and renewables,” Balaban said.

“That said, there is an energy transition going on around the globe and … coming out of COVID, it seems like the global appetite for clean energy investment has just accelerated.”Battery storage projects are also starting to lift off in Alberta, with 10 proposed developments being advanced.

The new Windcharger battery storage project being development by TransAlta Corporation is seen near Pincher Creek. The project has been under development this year and will begin operating later this month. PHOTO BY PHOTO COURTESY TRANSALTA CORPORATION

 

Last month, TransAlta began commercial operations on its $14-million WindCharger project northeast of Pincher Creek, Alberta’s first utility-scale lithium-ion battery storage facility.

TD Asset Management announced in October its Greystone Infrastructure Fund has invested in the country’s biggest battery storage development, located in Alberta. It said the first of three 20 MW storage projects will be in service by next month.

There are other signs of changes underway, such as the launch this week of a new clean energy accelerator, training program and venture fund by Calgary-based Avatar Innovations Inc.

Kevin Krausert, former head of Beaver Drilling and now CEO of Avatar Innovations, said the downturn in the oilpatch has caused devastation in the industry.

Yet, the sector remains the economic engine of the province and there are opportunities to use Alberta’s energy expertise to expand in areas such as hydrogen, geothermal or developing emissions-reduction technology.

“It’s always been the story and the history of our industry and province to look at the challenges that face us and find opportunities,” Krausert said Friday.

“I wish I could go back to 2014 as well. It’s easier to solve the challenges in front of us and create opportunity than it is to figure out how to create a time machine.”There’s also another reality to keep in mind: independent forecasts show oil and gas will continue to be a major energy source for decades to come.

Last month, the IEA’s annual energy outlook report said under its base-case scenario, global demand for natural gas will rise by 30 per cent by 2040. Oil consumption is forecast to return to pre-pandemic levels of around 100-million barrels per day in five years and stabilize around 104-million barrels per day in two decades.

For Schulz, the solar project in Fort Chipewyan holds a lesson that is relevant for all Albertans during a period of change. Many forms of energy will be needed moving forward.

“You can still have your traditional fossil fuels because they play a role … but you can also embrace a rapidly evolving economic model presented by renewables,” he said.

“It’s a matter of embracing both.”

Chris Varcoe is a Calgary Herald columnist.