If politicians are serious about change, they need to incentivise it, say scientists and writers
The UK business secretary, Kwasi Kwarteng, is considering a “full vegan diet” to help tackle climate change, saying people will need to make lifestyle changes if the government is to meet its new emissions target of a 78% reduction on 1990 levels by 2035.
But how much difference would it make if everyone turned to a plant-based diet? Experts say changing the way we eat is necessary for the future of the planet but that government policy is needed alongside this. If politicians are serious about wanting dietary changes, they also need to incentivise it, scientists and writers add.
The literature on the impact of going vegan varies. Some studies show that choosing vegetarian options would only reduce greenhouse gas emissions per person by 3%. Others show a reduction in emissions per person of 20-30%.AdvertisementPaths less trodden are best kept secret |Brief lettershttps://imasdk.googleapis.com/js/core/bridge3.453.0_en.html#goog_1775637949https://imasdk.googleapis.com/js/core/bridge3.453.0_en.html#goog_232372636https://imasdk.googleapis.com/js/core/bridge3.453.0_en.html#goog_1214206122SKIP AD
“Probably the most important thing to point out is that emissions are often viewed as the only metric of sustainability: they are not. Impacts of farming systems on carbon sequestration, soil acidification, water quality, and broader ecosystem services also need to be well considered,” said Matthew Harrison, systems modelling team leader at the Tasmanian Institute of Agriculture.
“There is also a need to account for farming systems that may replace livestock,” he said.
The writer and environmental campaigner George Monbiot says the numbers on the impact of going vegan are different because of what scientists measure. “There are two completely different ways look at the carbon impact of diet: one is carbon released by producing this or that food – that is ‘carbon current account’. But another one is ‘carbon capital account’, which is the carbon opportunity cost of producing this food rather than another one,” he said.
“If you are producing meat, for example, what might land be used for if you took meat away? If you are growing forests there instead or peat bog there.”
Monbiot says what we eat is a “huge issue”, alongside our transport habits. “Most of what you can do at an individual level is weak by comparison to what governments need to do … but changing diet does not. That has a major impact,” he said.
“It is easier done if the government acts to change the food system but in the absence of that, we should still try and change our diets.”
In 2018, scientists behind the most comprehensive analysis to date of the damage of farming to the planet found avoiding meat and dairy products was the single biggest way to reduce your environmental impact on the planet. The research show0ed that without meat and dairy consumption, global farmland use could be reduced by more than 75% – an area equivalent to the US, China, European Union and Australia combined – and still feed the world.
“There are lots of different sectors that have an impact on emissions and the food system is surely one of the most important ones as it is globally responsible for about a third of all greenhouse gas emissions,” said Dr Marco Springmann, senior researcher on environmental sustainability and public health at the University of Oxford.
He added that the overwhelming majority of emissions were due to foods such as beef and dairy, which “means that without changing emissions associated with those products it is hard to make progress”. He said there were no good technical solutions for the fact that “cows emit methane emissions”.
“You can change feed composition but that does not change the animal and the need to feed the animal a lot of feed product,” he said. He believes the government needs to offer price incentives for sustainable products, making beef and dairy more expensive.
Frank Mitloehner, professor and air quality extension specialist at the University of California and Davis, said putting the onus on the individual was a distraction from policy changes that are needed. He said literature suggests “going vegan for two years has the same saving impact as one flight Europe to the US would generate.”
“If we really want to make a difference in carbon emissions we need to change policy. We need to have a cost for carbon that is appropriate. We need to incentivise those who can reduce greenhouse gas emissions to do so,” he said.
He believes the most important individual choice someone can make is to “go and vote … That is number one.”
Martin Heller, a research specialist at the University of Michigan, said: “There are no silver bullets for climate change. Nothing in isolation will be ‘enough’.”
He added that studies showed that even with gracious assumptions in improvements in agricultural production, feeding an anticipated population at anticipated growing demand for animal-based foods by 2050 would occupy “all of the allowable emissions if we are to stay below a 2C temperature rise”.
“We have to change the way we eat,” he said. “That certainly isn’t saying that diet change – or even becoming vegan – will ‘save the planet’. It’s more of a necessary but not sufficient kind of thing.” He added that “these diet shifts need to come with government, corporate and every other kind of action”.
“It’s also probably naive to assume that people will just change these behaviours because it’s good for the planet. It will require directed policy, changes in the restaurant and foodservice industries,” he said.
PUBLISHED THU, APR 22 20216:00 AM EDTUPDATED AN HOUR AGOEmma Newburger@EMMA_NEWBURGERSHAREShare Article via FacebookShare Article via TwitterShare Article via LinkedInShare Article via EmailKEY POINTS
- President Biden is pledging to reduce U.S. greenhouse gas emissions by at least 50% by 2030, in the latest push by the administration to aggressively combat climate change.
- The target more than doubles the country’s prior commitment under the 2015 Paris climate agreement.
- The announcement comes before the president hosts a closely watched climate summit on Thursday’s Earth Day, with world leaders from countries like China and India.
The target, announced Thursday, more than doubles the country’s prior commitment under the 2015 Paris climate agreement, when the Obama administration set out to cut emissions 26% to 28% below 2005 levels by 2025. The U.S. is currently not yet halfway to meeting that goal.
Biden’s pledge on Earth Day is in line with what environmental groups and hundreds of executives at major companies have pushed for. The president announce the target at the closely watched global leaders’ climate summit on Thursday, during which he hopes to urge global cooperation to address the climate crisis.
“This is the decisive decade,” Biden said at the summit on Thursday morning. “This is the decade that we must make decisions to avoid the worst consequences of the climate crisis.”
“This is a moral imperative. An economic imperative. A moment of peril, but also a moment of extraordinary possibilities,” the president said.
World leaders appear on screen during a virtual Climate Summit, seen from the East Room at the White House in Washington, U.S., April 22, 2021.Tom Brenner | Reuters
All 40 world leaders the president invited to the virtual summit will be attending, including those from China and India, and are anticipated to make new commitments. The U.K. and European Union have committed to slash emissions by 68% and 55%, respectively, by 2030. China, the world’s biggest emitter, has vowed to reach peak emissions by 2030 and be carbon neutral by 2060.
During the summit, Chinese President Xi Jinping repeated the country’s previous commitments and emphasized green development and multilateralism to reduce global emissions.
Indian Prime Minister Narendra Modi called for concrete action on climate change and announced an India-U.S. Climate and Clean Energy Agenda Partnership for 2030. He also re-confirmed the nation’s vow to install 450 gigawatts of renewable energy by 2030.
German Chancellor Angela Merkel attends a virtual Climate Summit with world leaders in Berlin, Germany, April 22, 2021.Kay Nietfeld | Reuters
Japan’s prime minister Yoshihide Suga announced a stricter emissions target of 46% reduction by 2030. Canada also updated its target and vowed to reduce 2005 emission levels by 40-45% by 2030.
The summit is a chance for the U.S. to rejoin global efforts on climate after then-President Donald Trump pulled out of the Paris accord, halted all federal efforts to reduce domestic emissions and rolled back more than 100 environmental regulations to favor fossil fuel production.
“I’m delighted to see that the United States is back, is back to work together with us in climate politics,” German Chancellor Angela Merkel said during the summit.
President Joe Biden delivers remarks during a virtual Leaders Summit on Climate with 40 world leaders at the East Room of the White House on April 22, 2021.Al Drago | Getty Images
British Prime Minister Boris Johnson, who this week announced that Britain would slash emissions by 78% by 2035, praised Biden “for returning the United States to the front rank of the fight against climate change.”
“It’s vital for all of us to show that this is not all about some expensive politically correct, green act of bunny hugging,” Johnson said. “This is about growth and jobs.”
Biden’s pledge also moves forward his campaign promise to decarbonize the country’s energy sector by 2030 and put the country on a path to net-zero emissions by midcentury.WATCH NOWVIDEO01:25Biden commits to 50% greenhouse gas reduction levels by 2030
Biden so far has proposed a $2 trillion infrastructure package that would aid a transition away from fossil fuels and toward clean energy, while promising to create green jobs. If passed, the legislation would be one of the largest federal efforts ever to reduce emissions.
“A strong national emissions reduction target is just what we need to catalyze a net-zero emissions future and build back a more equitable and inclusive economy,” Anne Kelly, vice president of government relations at sustainability nonprofit Ceres, said in a statement.
In order to achieve a net-zero economy by 2050, the U.S. must curb emissions by 57% to 63% in the next decade, according to an analysis by Climate Action Tracker, an independent group that analyzes various government climate pledges.
This week’s summit also comes ahead of a major U.N. climate conference in Glasgow, Scotland, in November, during which nations in the Paris agreement will unveil updated emissions targets for the next decade.
Still more than 2 months left in Labrador hunting season
CBC News · Posted: Apr 14, 2021 6:00 AM NT | Last Updated: 9 hours ago
Only five of 12 licences to harvest polar bears have been filled on the north coast of Labrador, and the Nunatsiavut government says weather and climate explain this year’s drop.
Each year, licences to kill polar bears are allotted to Inuit hunters on Labrador’s north coast via random selection.
For the past two years, the Newfoundland and Labrador government has allowed 12 licences to be handed out.
In 2020, 11 of those licences were filled before the June 30 deadline.
So far this season, only five animals have been killed.
The troubles with this year’s sluggish hunt are just one detail among many about what’s emerging to be an existential issue for Labrador’s Inuit, who rely on sea ice for food, resources and survival.
“The ice conditions, the way they are now, it’s getting kind of difficult for people to get around,” said Todd Broomfield, the Nunatsiavut government’s director of renewal resources.
“When it’s difficult getting around, you can’t normally get to your places where you would hunt polar bear, so that’s having an impact this year.”
Of the five polar bears killed, three were taken from Nain hunters and one each from Hopedale and Makkovik. The licences allotted to Rigolet and Postville have not yet been filled.
According to Broomfield, the bears visit the islands peppered along Labrador’s north coast. However, a winter that has seen far less sea ice means travelling to the bears is difficult.
Shrinking sea ice in northern Labrador
22 days ago1:00Nunatsiavut residents describe the thinning sea ice, and the toll it’s taking in their communities 1:00
“It impacts your ability to get out to the outside islands where you would normally expect to see polar bear[s],” Broomfield said.
The hunt officially began in the mid-1980s with a quota of six bears for the area. In 2011 that was increased to 12 bears from the Davis Strait subpopulation, one that is said to have a population of up to 2,500 bears.
Ben Ehrenreich/March 18, 2021
Why we must do everything differently to ensure the planet’s survival
ILLUSTRATIONS BY JON HAN
On January 13, one week before the inauguration of Joe Biden as the forty-sixth president of the United States and seven long days after the storming of the Capitol by an armed right-wing mob, it was easy enough to miss an article published in the journal Frontiers in Conservation Science, despite its eye-catching title: “Underestimating the Challenges of Avoiding a Ghastly Future.” The headline was itself a train wreck: six dully innocuous words piling up in front of a modifier more suitable to a 1950s horror comic than a sober, academic journal. But there it was: The 17 scientists who co-wrote the article, the experts who peer-reviewed it, and the journal’s editors did not consider the word “ghastly” too sensational, subjective, or value-laden to describe the future toward which our society is advancing with all the prudence and caution of a runaway locomotive. The article’s message was simple: Everything must change.
On its current track, the authors wrote, “humanity is causing a rapid loss of biodiversity and, with it, Earth’s ability to support complex life.” As many as a million animal species—and 20 percent of all species—are facing near-term extinction. Humans have altered 70 percent of the planet’s land surface and “compromised” or otherwise despoiled two-thirds of its oceans, and the climate has only begun to warm. Humanity—or some of us, anyway—“is running an ecological Ponzi scheme in which society”—or some sectors of it—“robs nature and future generations to pay for boosting incomes in the short term.” Only a radical transformation of the systems that govern our relations to one another and to the myriad forms of life with which we share the planet, the authors concurred, could deliver any hope of a “less-ravaged future.”
One week later, Joe Biden took the oath of office and quickly signed sweeping executive orders declaring it the explicit policy of his administration “to listen to the science.” He didn’t use the word “ghastly,” but he did mention “a cry for survival … from the planet itself,” one that “can’t be any more desperate or any more clear.” This was strangely comforting to hear. He rejoined the Paris accord, revoked a slew of Trump-era executive orders, and restored, albeit temporarily, the moratorium on drilling in the Arctic that President Barack Obama had issued on his way out the door. However slow Biden had been to catch on to the true magnitude of the climate crisis during the primaries, he had, after months of sustained movement pressure, apparently begun to come around.Get independent, fact-based journalism:
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To his credit, in his first week in office, Biden went further than any of his predecessors ever had. He ordered a “pause” on all new permits and leases for oil and gas drilling offshore and on federal land and shut down the Keystone XL oil pipeline, which activists had been fighting for more than a decade. He ordered federal agencies to pursue a “carbon pollution–free electricity sector no later than 2035,” and the full conversion of all government fleets to zero-emissions vehicles.
Perhaps most significantly, Biden’s actions aimed to institutionalize the mitigation of climate change as a priority in the daily workings of the federal bureaucracy. He ordered the creation of an Office of Domestic Climate Policy, a national climate adviser, a special presidential envoy for climate, and, in an explicit echo of the New Deal program—though green only with a lowercase g—a Civilian Climate Corps. He directed federal agencies to “implement a Government-wide approach that reduces climate pollution in every sector of the economy,” to center climate in foreign policy decisions, to eliminate fossil fuel subsidies, and to “promote ending international financing” of fossil fuels. There was even, in the very first section of his first climate order, a mandate for environmental justice and the protection of communities of color that had been disproportionately harmed by polluters. Whether that would mean any real inclusion—“If you’re not at the table, you’re on the menu,” as one South Carolina environmental justice activist put it to me—remains an open question. But as a signal of his administration’s priorities and its sense of urgency, it was, all the climate activists I spoke to agreed, an extremely solid start.https://3e2ce429ad8218c24d438728d948328a.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.html
There was of course also a good deal of typical Democratic half-stepping. Why a “pause” on drilling and not an outright ban? (And why had the administration quietly gone ahead and approved 31 new drilling permits anyway?) Why no mention of fracking? Why not just shut down all the oil and gas pipelines that “[disserve] the U.S. national interest,” as the executive order put it, in exactly the same ways that Keystone XL did? And why not immediately declare a climate emergency, which would have opened up executive powers that would enable him to evade many of the roadblocks erected by the 50 Republicans in the Senate? Even Senate Majority Leader Chuck Schumer, no one’s idea of a radical, was urging Biden to do so. “If there ever was an emergency,” Schumer said, “the climate crisis is one.”
Still, with these and more caveats and endless sound reasons for mistrust, after four long years of Trump’s out-and-out denialist, kleptocratic mayhem, the sheer momentum of Biden’s actions did feel pretty good. At least it allowed us to contemplate the prospect ahead with something other than pure dread. But a couple of months into the Biden era, enough time has passed for it no longer to seem impolite to point out that we should not be reassured. The “ghastly future” that those 17 scientists were warning of will still arrive, right on schedule or perhaps a little early, so long as Biden stays within the frame of what now counts as pragmatic climate policy—which, it turns out, is not very pragmatic at all.
Those 17 scientists did not want you to despair. “Ours is not a call to surrender,” they wrote. It was meant as a kick in the ass—a reminder that our only chance is a thoroughgoing transformation. Specifically: “fundamental changes to global capitalism, education, and equality, which include inter alia the abolition of perpetual economic growth.” Radical as this call may seem, it was hardly an outlier demand from a few oddball pinko Ph.Ds. In 2019, 11,258 scientists from 153 countries signed a “Warning of a Climate Emergency” that called for “bold and drastic” changes to the economy, including a shift away “from GDP growth and the pursuit of affluence toward sustaining ecosystems and improving human well-being.” Two years before that, the Alliance of World Scientists made a similar call in a “Warning to Humanity” that garnered 15,364 signatures. We are supposed to listen to science now. This is what the scientists are saying: Everything must change.Get independent, fact-based journalism:
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A strange sort of faith lies at the core of mainstream climate advocacy—a largely unexamined belief that the very system that got us into this mess is the one that will get us out of it. For a community putatively committed to scientific empiricism, this is an extraordinary conviction. Despite reams of increasingly apocalyptic research, and despite 25 years of largely fruitless international climate negotiations, carbon emissions have continued to rise, and temperatures along with them. We are at nearly 1.2 degrees Celsius of warming already—more than 2 degrees Fahrenheit over preindustrial averages—and three-tenths of a degree away from blowing the Paris accord’s aspiration to limit warming to a still-calamitous 1.5 degrees Celsius. Scientists now expect us to hit that threshold in about 10 years, and large swaths of the Arctic have been in actual flames for two summers running, but most governments with the option to do so are still feeding the beast that got us here.https://3e2ce429ad8218c24d438728d948328a.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.html
Even with the grim opportunity presented by the Covid-19 pandemic, which slowed the economy so much that growth in fossil fuel production dropped an almost unprecedented 7 percent last year, governments—ours very much included—have so far dumped much more stimulus spending into high-carbon industries than into renewable energy. It’s as if our economic system, and the politics it breeds, will not allow us to diverge from the straight path to self-obliteration.
The faith nonetheless persists: The market will provide. It has not done so yet, but renewables are perhaps finally cheap enough—cheaper at last than conventional energy sources—that the transition is now inevitable. So the credo goes. The change that is coming will be largely technological: a bold new era of “green growth.” Modern societies erected on dirty coal and oil can be jacked up and shifted to cleaner forms of energy like an old house in need of a new foundation. Government may have a larger role in this transition than neoliberal dogma has recently allowed, but its primary task will still be to encourage innovation and feed the markets by shepherding the resulting growth.
It is no coincidence that some version of this faith, so all-pervasive now that it does not register as a piety, has been reshaping the planet for almost precisely as long as fossil energy—first coal, then oil—has been altering the atmosphere. Capitalism is guided by a carbon creed, an ecstatic vision of a market that chugs along eternally, needing only new inputs—the earth itself, commodified as minerals, or water, housing, health care, or almost any living thing—to spew out wealth that can be shoveled back into the machine, converting more and more of the biosphere into zeros in a digital account: more fleshless, magical money that can be invested once again. If appetites are bottomless, and apparently they are, shouldn’t growth be endless too?
The market’s grip on the political imagination so effectively blinds us to alternatives that we are unable fully to grasp that this is the basic script that the new administration is following. Even the Green New Deal does not substantively diverge from it. The climate crisis, an existential threat to planetary life, must be sold to Wall Street and the public at large as a growth opportunity. On January 31, John Kerry, acting as Biden’s new climate envoy, enthused to CNN’s Fareed Zakaria about “literally millions of jobs” that would soon be created, about all the “new products coming online,” and about oil companies’ newfound passion for “carbon capture and storage and so forth.” The private sector, he said, “has already made the decision that there is money to be made here, that’s capitalism, and they are investing in that future.” If that makes you nervous, it shouldn’t, Kerry insisted. The changes ahead would be like the analog-to-digital shift of the 1990s, only better: “the important point, Fareed, for people to really focus on is it’s a very exciting economic transition.”
If Kerry struck a cheerier tone than that of the doomsaying consensus in the scientific community, it wasn’t just a question of polishing a turd. “Green growth” is mainstream climate discourse. A “green transition” that does not significantly alter existing economic structures—or their vast inequities—is still, for most climate advocates, the only imaginable way forward. Kerry was speaking a made-for-TV version of the sole language available to him—one that in its most basic assumptions excludes the possibility of fundamental social transformation, and of any heresy that casts doubt on the Great God Growth. The one thing all those thousands of scientists agree on is our only hope—that the economic structures that mediate our relation to the planet must be profoundly altered—is the one thing that Kerry and Biden are quite careful not to consider at all.
In climate policy jargon, the crucial concept is “decoupling.” The notion lies deep in the hidden heart of the “sustainable development goals” held dear by international bodies such as the United Nations and the World Bank: Economic growth can be safely divorced from the ecological damage that it has heretofore almost universally wreaked. If the train of capital appears to be hurtling us toward the abyss, we can cut the engine loose and cruise someplace more comfortable: same train, same speed, different destination. Like millions of clean-tech jobs and a crisis-induced transition magically unlocking unimaginable wealth, it is an attractive and reassuring idea. The only problem is that there is next to no evidence that anything analogous has ever occurred, or that it is likely to occur in the future.
Examples of successful decoupling tend to involve shifts in the location rather than the nature of industrial production: Rich countries green their economies by offshoring the manufacture of the goods they consume to China and countries in the global south, which they can then chastise for their lax emissions standards. But Earth’s atmosphere is not divided by national boundaries. Greenhouse gases cause the same degree of global warming no matter where they are produced, and to the extent that this kind of decoupling is a meaningful measure of anything, it is only of the colonial relations that still set the terms for the shell game of global capital.
What policy wonks call “absolute decoupling”—the only kind that would do the climate any good—turns out to be a fantasy akin to a perpetual motion machine, a chimera of growth unhindered by material constraints. One recent analysis of 835 peer-reviewed articles on the subject found that the kind of massive and speedy reductions in emissions that would be necessary to halt global warming “cannot be achieved through observed decoupling rates.” The mechanism on which mainstream climate policy is betting the future of the species, and on which the possibility of green growth rests, appears to be a fiction.https://3e2ce429ad8218c24d438728d948328a.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.html
This fiction is nonetheless fundamental to the very math used by international climate institutions. In 2018, the Intergovernmental Panel on Climate Change’s benchmark Special Report on Global Warming of 1.5oC—which announced in no uncertain terms that global emissions must be decreased by nearly half by 2030 and reach net zero by 2050 to avoid cataclysm at an almost unthinkable scale—set out a number of possible scenarios for policymakers to consider. It relied on algorithmic models linking greenhouse gas emissions and their climate impacts to various socioeconomic “pathways.” Whatever other variables they accounted for, though, all of the scenarios envisioned by the IPCC assumed the continuation of economic growth comparable to the past half-century’s. Even as they acknowledged levels of atmospheric carbon unseen in the last three million years, they were unable to conceive of an economy that does not perpetually expand. Fredric Jameson’s oft-cited dictum that it is easier to imagine the end of the world than the end of capitalism was baked into the actual modeling.
At the same time, all but one of the IPCC’s scenarios that envision us successfully limiting warming to 1.5 degrees Celsius rely on the use of technology to remove carbon from the atmosphere after the fact. (The one exception involves converting an area more than half the size of the United States to forest. None of the scenarios imagines that we can reach the 1.5 degrees Celsius target by cutting emissions alone.) But the technology in question is at this point largely speculative. “No proposed technology is close to deployment at scale,” the report’s authors concede, and “there is substantial uncertainty” about possible “adverse effects” on the environment. The international body, in other words, is more willing to gamble on potentially destructive technologies that do not currently exist than to even run the math on a more substantive economic transformation.
A version of this same wager animates the Biden climate plan, which, as Canada, the European Union, the U.K., and South Korea all have, commits to “net-zero emissions no later than 2050.” (China plans to reach the same goal by 2060.) This sounds like great news, and is without doubt worlds better than the status quo ante of no ambitions at all. But “net zero” is a slippery notion. It does not mean zero at all. To avoid exceeding 1.5 degrees Celsius of warming, emissions need to fall 7.6 percent every year for the next 10 years. Even with the pandemic-induced slowdown, global emissions shrank only 6.4 percent in 2020. Since, as Biden reassured a nervous oil industry during the campaign, “We’re not getting rid of fossil fuels for a long time,” net-zero calculations assume some degree of “overshoot”—i.e., they stipulate that we’re not going to be able to cut emissions fast enough, and that we’ll therefore have to rely on those same untested carbon removal technologies to eventually bring us to zero.
But a planet is not a balance sheet. The climate has tipping points—the collapse of the Antarctic and Greenland ice sheets and the Himalayan glaciers, the deterioration of Atlantic Ocean currents, the melting of the permafrost, the transition of the Amazon from rain forest to savannah. We are perilously close to hitting some of them already: In February, 31 people were killed and 165 went missing when a chunk of a Himalayan glacier broke off, releasing an explosive burst of meltwater and debris. In the most nightmarish scenario, which could be tripped with less than 2 degrees Celsius (3.6 degrees Fahrenheit) of warming, those tipping points could begin to trigger one another and cascade, locking us in, as one widely cited study put it, to “conditions that would be inhospitable to current human societies and to many other contemporary species.” Without major emissions cuts, we may reach 2 degrees Celsius of warming before 2050.https://3e2ce429ad8218c24d438728d948328a.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.html
That’s a heavy risk to bet against, but there it is, pulsing away inside the net-zero promises that not only politicians but corporate boards have been proudly rolling out. Over the last two years, more and more corporations in fossil fuel–intensive industries—BP, Shell, Maersk, GM, Ford, Volkswagen, at least a dozen major airlines—have made similar pledges. Shell’s plan alone would require tree planting over an area nearly the size of Brazil. By the estimate of the NGO ActionAid, “there is simply not enough available land on the planet to accommodate all of the combined corporate and government ‘net zero’ plans” for offsets and carbon-sinking tree plantations. To save this planet, it appears we’ll need another one. This is what currently counts as pragmatism.
“If there is any one thing that global warming has made perfectly clear,” Amitav Ghosh wrote in 2016, “it is that to think about the world as it is amounts to a formula for collective suicide.” Five years later, the pandemic has drilled the point painfully home. The societies most geared toward individual profit, and most worshipful of economic expansion, have proved least capable of saving themselves. Decades of almost unbroken GDP growth have piled up riches in a few gated compounds while leaving the vast majority of Americans poorer and more vulnerable to illness, imprisonment, homelessness, and the ghastly futures that we know all too well await us. That vulnerability is far from uniform. Covid has charted a precise map of its variegated terrain, of who gets to live and who gets pushed out to die. The same map applies to the climate crisis, too.
It is at this point a truism that the responsibility for global warming is not the common property of humanity but lies overwhelmingly with the few wealthy countries, the United States above all others, that profited most from early industrialization. The corollary truism is that the poor countries that disproportionately suffer the impacts of climate change contributed next to nothing to the problem. We have since learned that what is true in global macrocosm applies at the societal level as well. The wealthy consume far more resources and emit far more carbon than the rest of us. According to a recent Oxfam report, the richest one percent produce 100 times more emissions than the poorest half of the planet’s population, and the richest 5 percent were responsible for more than a third of all emissions growth between 1990 and 2015. Leveling this gross inequity is a question of survival.
As transcendent as the notion is made to sound, the “economy” is not a god or a temple. It is the order that maintains these inequalities: a highly contingent network of relations among human beings and between humans and the rest of the planet. Like everything we might ever hope to make, it is transitory and eminently changeable. Homo sapiens have walked the earth for at least 300,000 years, but coal-fueled industrial capitalism is less than 200 years old. Its latest, fully globalized stage has been around for just a few decades, even if its roots lie in colonial dynamics that date back a few centuries. Our specific modern exaltation of “growth” dates only to the years that followed World War II. It is younger than Joe Biden, Mitch McConnell, Nancy Pelosi, and Donald Trump. Like them, it cannot survive much longer.https://3e2ce429ad8218c24d438728d948328a.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.html
Last year, GDP growth in the United States fell 3.5 percent. Emissions tumbled, too. The only other time in the last three decades that they have dropped significantly was, not coincidentally, also the last time the economy contracted. But if it’s guided with intent, the cessation of endless growth does not have to mean impoverishment. The most recent “Emissions Gap Report” from the United Nations Environment Program (UNEP) projects that warming could be successfully limited to 1.5 degrees Celsius if the richest one percent reduced “their current emissions by at least a factor of 30,” which would allow the poorest 50 percent of the planet’s population to increase their per capita emissions “by around three times their current levels.” For the latter, a threefold jump in consumption is the difference between constant want and a life of basic dignity. Billionaires who drop to 1/30th of their fortunes are still multimillionaires.
As innocuous as it may sound, “growth” should be understood to describe the frenzied ruination of nearly every ecosystem on the planet so that its richest human inhabitants can hold on to their privileges for another generation or two. Rejecting the idolatry of growth means tilting the organization of our societies toward other social goods—health, for instance, and the freedom to exist on a planet that is not on fire. This should not be unimaginable. There are infinite other ways to organize a society, and the fact that we are not widely and urgently discussing them is at this point nothing short of criminal. There are voluminous literatures on degrowth, on circular economies, on mutual aid, and, yes, on socialism, too. There is the 99.999 percent of human history during which we managed to not significantly alter the atmosphere or wipe out such an enormous portion of the species with whom we share the planet. There is the living experience of every indigenous community in the United States, and of others around the globe that have been forced to invent ways to resist and survive a system determined to erase them.
Everything must change. The energy system that is heating the atmosphere was poisoning Black and brown communities in America long before climate change emerged as an issue. The industrial food chain that produces roughly half of all global greenhouse gas emissions is also leaving more than a quarter of U.S. families with children without secure access to food and millions more with a uniquely American combination of obesity and undernourishment. The globalized supply chains that fuel international shipping and aviation—which, per the UNEP, “are projected to consume between 60 and 220 percent of allowable CO2 emissions by 2050”—were deadly to local economies as well as to breathing individuals long before the pandemic revealed their extraordinary fragility.
Transportation, health care, housing, education, everything that the Covid-19 outbreak has revealed to be so murderously broken, every aspect of our lives currently controlled by shareholder profits—does that even leave anything out?—must be rethought and rebuilt in the context of terrestrial survival. The white supremacy that threatens to tear the country down while strangling the rest of the globe has proved inseparable from an ecocidal urge to dominate all forms of planetary life. (W.E.B. Du Bois saw it clearly 100 years ago: “whiteness is the ownership of the earth forever and ever.”) It must be confronted head on. A foreign policy constructed to at all costs preserve a hegemony that for most of the last century has hinged on control of the planet’s oil reserves must be radically reconfigured.https://3e2ce429ad8218c24d438728d948328a.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.html
It is of course foolish to the point of derangement to imagine that Joe Biden would consent to any such transformation, much less lead the country toward one. Given the current political geography, it would be equally whimsical to suppose that any American politician or movement could ride to power on the message that this planet does not belong to us, that we share it with the dead and the still-to-be-born and with species we have not bothered to notice, and that we must learn to live among them with generosity, humility, and the sort of wisdom that does not come to human beings cheaply. However, it would be just as naïve to believe that current political configurations are any more stable or permanent than the climate, or any less vulnerable to concerted human action. If we do actually listen to the science, then we understand what ghastly futures await us and we know how bold we must be to avoid them. Any politics that presumes to be anything other than suicidal must take that knowledge as its starting point.Ben Ehrenreich @BenEhrenreich
Ben Ehrenreich is the author of Desert Notebooks: A Roadmap for the End of Time, which was published by Counterpoint Press.
DAVID NIELD4 AUGUST 2020
Scientists don’t always like being right: take the team that warned in a paper published in 2017 that the St. Patrick Bay ice caps in Canada would soon disappear, for example. The latest NASA satellite imagery shows that their prediction has sadly come true, and even faster than they expected.
Scientists from the National Snow and Ice Data Centre (NSIDC) at the University of Colorado Boulder initially predicted the disappearance of the St. Patrick Bay ice caps would take place over five years, but it’s actually only taken three.
The frozen sheets, probably in place for several centuries, measured more than 10 square kilometres (3.86 square miles) combined at the end of the 1950s, and have now shrunk down to nothing. It’s a sign of the climate change that’s gaining momentum all around the world, and showing no signs of stopping.
“When I first visited those ice caps, they seemed like such a permanent fixture of the landscape,” says geographer and NSIDC director Mark Serreze. “To watch them die in less than 40 years just blows me away.”
Ice cover in 2015 (left) and 2020 (right). (Bruce Raup/NSIDC)
Serreze was a young graduate student when he first set foot on the ice caps in 1982, and he was the lead author of the 2017 paper alerting the world to their drastic demise. By 2015, the ice caps were only five percent the size of what they were in 1959.
Recent imagery from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on the NASA Terra satellite shows no trace of the St. Patrick Bay ice at all. The ice in this region is unlikely to return any time soon.
The two ice caps that have vanished are part of a group on the Hazen Plateau, in the north of Ellesmere Island in Nunavut, way up in the Arctic Archipelago – one of the most northerly points of Canada.
Two ice caps often linked with the St. Patrick Bay pair, the Murray and Simmons ice caps, are faring better due to their higher elevation – in 2015 their ice cover was at 39 percent and 25 percent respectively, compared with the 1959 figure. However, scientists think they too could soon be gone.
When Serreze and his colleagues first started surveying the Hazen Plateau ice at the start of the 1980s, scientific consensus on global warming was still forming, and some researchers had suggested the planet was actually in a period of global cooling. The studies started back then were partly an attempt to find out one way or the other.
Ice cover tracked over time. (NSIDC)
Now there’s no doubt what’s happening. While the St. Patrick Bay ice caps may not be two of the most famous or significant points of geological interest in the world, they represent a small microcosm that reflects what’s happening to our planet as a whole.
They’re also a reminder that while scientists aren’t infallible, they very often do know what they’re talking about – and that when we get warnings about what’s coming our way in the future, we’d do well to take heed and to take action.
“We’ve long known that as climate change takes hold, the effects would be especially pronounced in the Arctic,” says Serreze.
“But the death of those two little caps that I once knew so well has made climate change very personal. All that’s left are some photographs and a lot of memories.”
The original 2017 research was first published in The Cryosphere.
JUNE 27, 2020
By David Wallace-WellsSatellite image of smoke from active fires burning near the Eastern Siberian town of Verkhoyansk, Russia, on June 23, 2020. Photo: Handout/NASA Earth Observatory
On June 20, in the small Siberian town of Verkhoyansk, north of the Arctic Circle, a heat wave baking the region peaked at 38 degrees Celsius — just over 100 degrees Fahrenheit. It was the highest temperature ever recorded in the Arctic. In a world without climate change, this anomaly, one Danish meteorologist calculated, would be a 1-in-100,000-year event. Thanks to climate change, that year is now.
If you saw this news, last weekend, it was probably only a glimpse (primetime network news didn’t even cover it). But the overwhelming coverage of perhaps more immediately pressing events — global protests, global pandemic, economic calamity — is only one reason for that climate occlusion. The extreme weather of the last few summers has already inured us to temperature anomalies like these, though we are only just at the beginning of the livable planet’s transformation by climate change — a transformation whose end is not yet visible, if it will ever be, and in which departures from the historical record will grow only more dramatic and more disorienting and more lethal, almost by the year. At just 1.1 degrees Celsius of warming, where the planet is today, we have already evicted ourselves from the “human climate niche,” and brought ourselves outside the range of global temperatures that enclose the entire history of human civilization. That history is roughly 10,000 years long, which means that in a stable climate you would only expect to encounter an anomaly like this one if you ran the full lifespan of all recorded human history ten times over — and even then would only encounter it once.
You may register temperature records like these merely as the sign of a new normal, in which record-breaking heat waves fade out of newsworthiness and into routine. But the fact of those records doesn’t mean only that change has arrived, because the records are not being set only once; in many cases, they are being set annually. The city of Houston, for instance, has been hit by five “500-year storms” in the last five years, and while the term has obviously lost some of its descriptive precision in a time of climate change, it’s worth remembering what it was originally meant to convey: a storm that had a one-in-500 chance of arriving in any given year, and could therefore be expected once in five centuries. How long is that timespan, the natural historical context for a storm like that? Five hundred years ago, Europeans had not yet arrived on American shores, so we are talking about a storm that we would expect to hit just once in that entire history — the history of European settlement and genocide, of the war for independence and the building of a slave empire, of the end of that empire through civil war, of industrialization and Jim Crow and World War I and World War II, the cold war and the age of American empire, civil rights and women’s rights and gay rights, the end of the cold war and the “end of history,” September 11 and 2008. One storm of this scale in all that time, is what meteorological history tells us to expect. Houston has been hit by five of them in the last five years, and may yet be hit with another this summer — which is already predicted to be a hurricane season of unusual intensity. Of course, that won’t be the end of the transformations. Climate change will continue, and those records — high temperatures, historic rainfall, drought, and wind speed and all the rest — will continue to fall. From here, literally everything that follows, climate-wise, will be literally unprecedented.$5 a month for unlimited access to Intelligencer and everything else New YorkLEARN MORE »
Land surface temperature anomalies from March 19 to June 20 in Eastern Siberia. The reds mark areas that were hotter than average for the same period from 2003-2018. The blues mark areas that were colder. From the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite. Illustration: Handout/NASA Earth Observatory
The arctic numbers from June 20 are terrifying enough; with more context they become only more so. It was warmer there than it was that same day, in Miami, Florida. In fact, it was warmer north of the Arctic Circle than it has ever been, on any June day, in the entire recorded history of Miami, which has only once, in the whole tropical century for which temperatures there have been registered, reached 100. It was about 30 degrees Fahrenheit warmer, in Verkhonaysk, than the average high temperature in the region for June, which means the arctic record was the equivalent, in terms of temperature anomaly, of a 110-degree June day in New York or a 115-degree June day in Washington, D.C. According to preliminary satellite data, land surface temperature in parts of arctic Siberia reached that level last week, too — 45 Celsius, or 113 Fahrenheit. In terms of temperature anomaly, that’s the equivalent of a 130-degree day in D.C. On Capitol Hill, that would be, very comfortably, lethal heat.
Thankfully, for Americans at least, that isn’t how global warming works — its punishing effects are distributed unequally around the globe, and, at the moment, the Arctic is being punished most vindictively, warming at three times the rate of the rest of the planet. In Siberia, in May, temperatures averaged as much as 10 degrees Celsius higher than normal. The arrival of the arctic summer reignited “zombie fires” that had, improbably, burned through the arctic winter, smoldering in peat rather than burning out. Those fires, like all fires, released carbon, which is stored in trees as surely as it is in coal, in this case releasing as much CO2 in the last 18 months as had been produced by Siberian wildfires in the last 16 years. In early June, an industrial-scale oil-storage facility there collapsed when the melting permafrost on which it had been built finally destabilized, releasing about 21,000 tons of oil and turning local rivers red. That spill was about two-thirds the scale of the Exxon Valdez spill, which horrified an entire generation; this one, we’ve hardly read about, though it befell a far more ecologically degraded planet, with more than half of all carbon emissions ever produced by the burning of fossil fuels in the entire history of humanity coming since the Valdez spill. Perhaps though is a less precise word than because, the intervening generation of environmental calamity having quite thoroughly normalized horrors like these. Even Vladimir Putin — presiding over a petrostate which, so far north, actually stands to benefit from some amount of global warming — declared it an emergency. All told, the planet’s melting permafrost contains twice as much carbon as hangs in the planet’s atmosphere today, and it’s expected that over the course of the century, at least 100 billion tons of it will be released through melt, about three years worth of global emissions and functionally enough to close the window on the goals of the Paris accords.
A June 11 view of the site of a diesel fuel spill at Norilsk’s Combined Heat and Power Plant No 3 in Siberia. Photo: Denis Kozhevnikov/TASS via Getty Images
That window was not open very far to begin with. One recent study suggested that even the decarbonization targets of Britain and Sweden, often hailed as global climate leaders, would produce emissions between two and three times the carbon budget required to meet the Paris goals. (And those are just their decarbonization plans, which are probably optimistic.) Another analysis suggested that, for all the talk of halving our emissions by 2030 — as the IPCC says is necessary to safely avoid 2 degrees of warming — the planet has only a 0.3 percent chance of doing so. If Donald Trump won reelection, the analysis suggested, those chances would fall to 0.1 percent — one in a thousand.
If 2 degrees is now inevitable, that doesn’t make it comfortable. Indeed, it will be, for much of the world, a horror — and the space between those two things, inevitability and horror, is the one in which we will all be forced to learn to live. At 2 degrees, it’s expected that more than 150 million additional people would die from the effects of pollution, storms that used to arrive once every century would hit every single year, and that lands that are today home to 1.5 billion people would become literally uninhabitable, at least by the standards of human history.
Those projections will invariably prove imprecise, or perhaps worse — that is both the nature of science, which proceeds by revision, and humanity, which will likely adapt to at least some measure of these impacts. But the Siberian heat wave reminds us just how large the scale of necessary adaptation will likely be — requiring us to respond not just by shoring up the proverbial shorelines of our civilizations but by preparing them in much more fundamental ways to endure conditions never seen before in the whole span of human history. It is also a reminder of just how much we miss when we regard the projections of any neat, linear model of future warming as a straightforward prediction of that future and of what level of adaptation will be require — especially when we reflexively discount the uncertainty warnings scientists invariably include, as any lay reader (including me) is likely to do. Perhaps the most important lesson of the freakish Siberian heatwave is: however terrifying you find projections of future warming, the actual experience of living on a heated planet will be considerably more unpredictable, and disorienting.
Just how freakish and unpredicted is this heatwave? Over the last few years, a growing chorus of critics have argued against one climate model built on predictions of high-end carbon emissions in particular, called RCP8.5 —arguing that, though it had been endorsed by the U.N.’s IPCC and formed the basis of much recent science since that organization’s last major report, its projections were simply implausible, relying as they did on the dramatic growth of coal use over the course if the century. As I’ve written before, that pathway does indeed look increasingly hard to credit as a model of our future, and is best understood, in terms of emissions, as an absolute worst-case scenario, which would require almost a global climate nihilism to achieve. But for those suggesting we should discard that model, or any other that charted a high-end course for warming, the arctic heatwave makes a very strong counterargument. Because even in that worst-case pathway, hundred-degree summer days in the Arctic do not become routine until the very end of the century. This heat wave is, today, an outlier, not a routine event. But that doesn’t make it irrelevant. Instead, it is giving us at least a brief preview of what the world would look like, more than a half-century from now, in a timeline we understand to be, at least in terms of emissions, impossibly pessimistic. But if our timeline could accommodate such extreme events from that worst-case one, and decades ahead of schedule, it is also a sign that “timeline” is probably a misguided way of thinking about the new swirling universe of extreme events we are plunging headlong into. Making sense of climate change requires more than trying to determine where on a particular linear plot we are and where on it we are likely to be in ten years, or in fifty. It may require more profoundly revising our sense of linearity itself. In this way, global warming isn’t just scrambling our sense of geography, with Verkhonaysk, at least briefly, playing the role of Miami. It is also scrambling our sense of time. You may feel, because of the pandemic, that you are living to some degree in 1918. The arctic temperatures of the past week suggest that at least part of the world is living, simultaneously, in 2098.
But climate change isn’t just a brutal form of time travel, it is discombobulating to our very sense of time. When looking at projections for future warming, an event like the Siberian heat wave appears as an acceleration of history, but when looking at the paleoclimate record, it seems like a trip deep into the prehuman past, toward eras like those, lasting millions of years, when palm trees dotted the Arctic and crocodiles walked in their shade there. Especially at extreme levels, warming threatens the apparent march of progress on which the modern, Western “timeline” model of history was built. But at least until the arrival of large-scale carbon removal technologies, it also illustrates the fact that time — in the form of carbon emissions, which hang in the atmosphere for centuries — is irreversible. Because we are doing so much damage so quickly, destabilizing the entire planet’s climate in the space of a few decades, warming can seem like a phenomena of the present. But its effects will unfurl for millennia, with the climate stabilizing perhaps only millions of years from now. Climate change unwinds history, melting ice frozen for many millennia and pushing rainforests like the Amazon closer to their long-overgrown savannah states. It also makes new history, drawing new borders and new riverbeds, turning breadbaskets like the Mediterranean into deserts and opening up arctic shipping routes to be contested by a new generation of great power military rivalries. It compresses history — those Houston storms, for instance, represent more than a millennia of extreme weather, concentrated in a period of just five years. And it scrambles and scatters it, too, disrupting the cycle of seasons and relocating rain belts and monsoons, among many other distortions. At the same time temperatures in Verkhoyansk reached 100 degrees, in other parts of Siberia it was snowing. Was it winter or summer, a Russian catching the national weather forecast could have been forgiven for asking. They may have wondered, is this our hellish climate future or the return of the Little Ice Age?
Contemplating the impacts of climate change from this perspective can seem naïvely abstract — and it is, when compared to the storms and the wildfires and the droughts. (Not to mention the literal plague of locusts, 360 billion of them, which have devastated agriculture in East Africa and South Asia this year, descending in clouds so thick you couldn’t see through the insects and leaving millions hungry.) But in addition to its humanitarian cruelties, for instance making pandemics like COVID-19 much more likely, warming is already recalibrating much more hard-headed models of time, too. This is a sign that warming is truly the meta-narrative of our century, touching every aspect of our lives. Beyond the catastrophes and crises, the surreal and disorienting aspects of climate change are showing up even in the most numbingly pragmatic places. Like, for instance, mortgages.
“Up and down the coastline, rising seas and climate change are transforming a fixture of American homeownership that dates back generations: the classic 30-year mortgage,” Christopher Flavelle of the New York Times reported June 19. (As it happens, the day before the record-setting temperatures in the Arctic.) As Kate Mackenzie has relentlessly chronicled for Bloomberg, mortgages aren’t the first or only financial instrument to feel the intrusion of a new climate reality much less forgiving, and less stable, than the one on which not just the financialization of the global economy but indeed all of human civilization has been erected. Insurance and reinsurance, municipal bonds and sovereign wealth funds, boutique hedge funds and massive asset-management operations are all beginning to reckon with a future made, at least, much rockier by climate change. How much rockier? Well, according to a Climate Central estimate, at least half a million American homes are on land expected, 30 years from now, to flood every single year. Altogether, those homes are today worth $241 billion. This is just homes, just in America, and annual flooding isn’t the only flood risk a homeowner or a bank might want to consider, which means, even looking only at flooding, many, many more homes are vulnerable than that. Of course, flooding is not, by any stretch, the only climate risk those homes and homeowners would face.
Residents with a dog sit in the back of a truck while waiting to be rescued from rising floodwaters due to Hurricane Harvey in Spring, Texas on August 28, 2017. Photo: Luke Sharrett/Bloomberg via Getty Images
Like many of those other financial instruments, a mortgage isn’t just an instrument but also a theory of time — a bet on future value built on the proposition that three decades is a long enough period to absorb the short-term turbulence of real-estate markets and a short-enough period that larger systemic shocks would not have time to develop and reverberate. That is, at least, how the mortgage looks from the bank side. From the consumer side, a mortgage represents a related, but slightly different, theory of time. For most of postwar American history, it has represented “adulthood,” as defined in mostly white and middle-class-and-up terms. For all those distortions and delusions embedded in it — ideas about housing and the real-estate market but also race and class and urbanization and family structure — the 30-year mortgage also embedded an idea about the stability of society through time, that one could expect to arrive at the end of adulthood in a world recognizable to the person who began it, and indeed that whatever changes had transpired would be, on net, of value to the homeowner, who by virtue of his or her property had become a small-scale stakeholder in the prospects of the community, the region, the nation and indeed the world as a whole. As the Times reports, both sides of that bargain are already, now, beginning to look very different.
Blocking sunlight with technology is feasible—it’s only a matter of time until someone tries it.
Congratulations. You’ve done everything humanly possible to cut carbon dioxide—to zero. But what if even that won’t be enough?
It’s one of the most uncomfortable realizations in climate research. Inertia in the climate system implies that even if emissions stopped, temperatures and especially sea levels would continue to rise for a long time. The logical conclusion leads almost immediately to the specter of solar geoengineering, an attempt to use technology to reflect a portion of sunlight back into space. The principle behind solar geoengineering is simple enough. With less sunshine coming through the atmosphere, the planet would invariably cool—and fast. At least temporarily. There’s even a natural analogue: the eruption of Mount Pinatubo in the Philippines. In June 1992—ironically, the same time as the pivotal Rio de Janeiro Earth Summit—global average temperatures were about 0.5C cooler than they would have been without all the ash and sulfur dioxide, SO₂, catapulted into the lower stratosphere by the volcano a year prior.
Alas, the millions of tons of gunk from Mount Pinatubo soon fell out of the stratosphere, temperatures shot back up—and they’ve been increasing since.
That leads to another thought experiment. What if some entity, be it an international body or a lone nation, decided to use large-scale tech to re-create the cooling effects of a volcanic eruption? The engineering would be straightforward: release SO₂ near the equator about 20 kilometers (12.4 miles) up into the stratosphere. The SO₂ would turn into tiny reflective sulfate particles that would spread around the globe within weeks and linger for months. A bit of sunlight would be reflected away, and everything down below would be cooled.
This is the premise of solar geoengineering via stratospheric aerosols. It’s fast. Unlike cutting CO₂, adding SO₂ cools the Earth within weeks, not decades. It’s powerful. Millions of tons of SO₂ could help offset the global warming effects of hundreds of billions of tons of CO₂. It’s also highly imperfect and risky. It’s akin to adding one type of pollution (SO₂) to help counter the effects of another pollutant (CO₂). Think of it as an experimental drug taken in a pandemic. It might show promise, but watch out for unknown side effects.
In fact, SO₂ is a harmful pollutant. Burning fossil fuels releases tens of millions of tons of SO₂ into the lower atmosphere, killing about 4 million people each year through heart disease, stroke, and lung cancer. The resulting acid rain kills trees and melts medieval cathedrals. If all SO₂ emissions were to stop overnight, it would be a boon to human health but a setback for global warming because it cools the planet. Average global temperatures would rise by at least 0.5C—an eruption of Mount Pinatubo in reverse.
It was precisely this thought experiment that led to a resurgence in solar geoengineering research. Too little is known to actually do solar geoengineering now, and research funding is less than $20 million a year. By comparison, the federal government alone spends more than $2 billion on climate research, according to the U.S. Global Change Research Program. Of the few dozen climate scientists actively engaged in the research, most focus on computer models. Only a handful are conducting lab experiments. A Harvard group is working on an experimental balloon platform, as well as on alternatives to SO₂. Calcium carbonate has shown promise in models and the lab. (I was until last year the founding co-director of Harvard’s Solar Geoengineering Research Program.) Much more research is needed to make anything akin to an informed deployment decision, and any process of moving toward deployment will be messy.
Solar geoengineering is potentially so powerful that one actor might be able to lower temperatures for the globe. It’s only a matter of time before pressure will increase to do just that, regardless of how fast the world slashes CO₂ emissions. With more frequent extreme heat and weather, it’s not hard to foresee conditions miserable enough to make an attempt at a little relief seem worth the risk to some. Limited research is already making one thing clear: Solar geoengineering isn’t only technically feasible, it’s a bargain. Next to the trillions in costs from unmitigated climate change, and even the expense of cutting CO₂, solar geoengineering costs practically nothing. If anything, it’s too cheap. A program that releases SO₂ to decrease average temperatures by about 0.1C would cost less than $5 billion per year. This should prompt the world to prepare for its inevitability. Dozens of countries have both the capacity and possible motivation. The operative word is “when,” not “if.”
JUNE 1, 2020
While carbon dioxide is more abundant in the atmosphere and therefore more commonly associated with global warming, methane is around 30 times more potent as a heat-trapping gas. Given its importance, Canadian company GHGSat have worked in collaboration with the Sentinel-5P team at SRON Netherlands Institute for Space Research to investigate hotspots of methane emissions during COVID-19.
Carbon dioxide is generally produced by the combustion of fossil fuels, while fossil fuel production is one of the largest sources of methane emissions. According to the World Meteorological Organisation’s State of the Global Climate report last year, current carbon dioxide and methane concentrations represent respectively 150% and 250% of pre-industrial levels, before 1750.
Owing to the importance of monitoring methane, SRON’s and GHGSat’s research teams have been working since early-2019 to detect methane hotspots. The SRON team uses data from the Copernicus Sentinel-5P satellite to detect emissions on a global scale. The GHGSat team then utilises data from GHGSat satellites to quantify and attribute the emissions to specific facilities around the world.
Their work has led to several new hotspots being discovered in 2020, for instance over a coal mine in China. The team have also detected methane emissions over the Permian Basin—the largest oil-producing region in the United States. The team observed concentrations from March-April 2020, compared to the same period as last year in an effort to evaluate the impact of COVID-19 activities on methane emissions.
An initial look at these data suggest a substantial increase in methane concentrations in 2020, compared to 2019. Claus Zehner, ESA’s Copernicus Sentinel-5P mission manager, says, “An explanation for this could be that as a result of less demand for gas because of COVID-19, it is burned and vented—leading to higher methane emissions over this area.”
Ilse Aben, from SRON, comments, “However, these results are inconclusive when using only Sentinel-5P data in the Permian Basin as the number of observations are limited.”
The spatial distribution of Sentinel-5P concentrations in 2020 and in 2019 both indicate local enhancements of methane concentrations in the Delaware and Midland portions of the basin. But higher-resolution measurements, such as those provided by GHGSat, are needed to attribute these enhancements to specific facilities.
The joint analysis of GHGSat and Sentinel-5P regional methane data will continue to explore and quantify how COVID-19 is affecting emissions from the natural gas industry on a regional scale—all the way down to the level of industrial facilities.
Stephane Germain, CEO of GHGSat, comments, “GHGSat continues to work closely with ESA and SRON’s Sentinel-5P science team. We are advancing the science of satellite measurements of atmospheric trace gases while simultaneously providing practical information to industrial operators to reduce facility-level emissions. GHGSat’s next satellites, scheduled to launch in June and December of this year, will help improve our collective understanding of industrial emissions around the world.”
Eric Laliberté, Director General Utilization from the Canadian Space Agency, says, “The Canadian Space Agency is committed to developing space technologies and supporting innovative missions to better understand and mitigate climate change. The results achieved by GHGSat are already having an impact and we are excited to continue working with GHGSat and ESA to better understand greenhouse gas emissions worldwide.”
Claus adds, “In order to further support the scientific uptake of GHGSat measurements, ESA has organised, together with the Canadian Space Agency and GHGSat, a dedicated Announcement of Opportunity Call that will provide around 5% of the measurement capacity of the upcoming commercial GHGSat-C1, also known as the Iris satellite, to the scientific community.”
The Copernicus Sentinel-5P satellite, with its state-of-the-art instrument Tropomi, can also map other pollutants such as nitrogen dioxide, carbon monoxide, sulphur dioxide and aerosols—all of which affect the air we breathe.