Monday, September 30, 2019

The birds

Three Billion Canaries in the Coal Mine

What does it mean for us that birds are dying? And what can we do about it?
NASHVILLE — During the nearly quarter-century that my family has lived in this house, the changes in our neighborhood have become increasingly apparent: fewer trees and wildflowers, fewer bees and butterflies and grasshoppers, fewer tree frogs and songbirds. The vast majority of Tennessee is still rural, and for years I told myself that such changes were merely circumstantial, specific to a city undergoing rapid gentrification and explosive growth. I wasn’t trying to save the world by putting up nest boxes for the birds or letting the wildflowers in my yard bloom out before mowing. I was hoping only to provide a small way station for migrating wildlife, trusting they would be fine once they cleared the affluence zone that is the New Nashville.

I was wrong. A new study in the journal Science reports that nearly 3 billion North American birds have disappeared since 1970. That’s 29 percent of all birds on this continent. The data are both incontrovertible and shocking. “We were stunned by the result,” Cornell University’s Kenneth V. Rosenberg, the study’s lead author, told The Times.

This is not a report that projects future losses on the basis of current trends. It is not an update on the state of rare birds already in trouble. This study enumerates actual losses of familiar species — ordinary backyard birds like sparrows and swifts, swallows and blue jays. The anecdotal evidence from my own yard, it turns out, is everywhere.

You may have heard of the proverbial canary in the coal mine — caged birds whose sensitivity to lethal gasses served as an early-warning system to coal miners; if the canary died, they knew it was time to flee. This is what ornithologists John W. Fitzpatrick and Peter P. Marra meant when they wrote, in an opinion piece for The Times, that “Birds are indicator species, serving as acutely sensitive barometers of environmental health, and their mass declines signal that the earth’s biological systems are in trouble.”
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Saturday, September 28, 2019

What If We Stopped Pretending?

The climate apocalypse is coming. To prepare for it, we need to admit that we can’t prevent it.
By Jonathan Franzen

“There is infinite hope,” Kafka tells us, “only not for us.” This is a fittingly mystical epigram from a writer whose characters strive for ostensibly reachable goals and, tragically or amusingly, never manage to get any closer to them. But it seems to me, in our rapidly darkening world, that the converse of Kafka’s quip is equally true: There is no hope, except for us.

I’m talking, of course, about climate change. The struggle to rein in global carbon emissions and keep the planet from melting down has the feel of Kafka’s fiction. The goal has been clear for thirty years, and despite earnest efforts we’ve made essentially no progress toward reaching it. Today, the scientific evidence verges on irrefutable. If you’re younger than sixty, you have a good chance of witnessing the radical destabilization of life on earth—massive crop failures, apocalyptic fires, imploding economies, epic flooding, hundreds of millions of refugees fleeing regions made uninhabitable by extreme heat or permanent drought. If you’re under thirty, you’re all but guaranteed to witness it.

If you care about the planet, and about the people and animals who live on it, there are two ways to think about this. You can keep on hoping that catastrophe is preventable, and feel ever more frustrated or enraged by the world’s inaction. Or you can accept that disaster is coming, and begin to rethink what it means to have hope.

Even at this late date, expressions of unrealistic hope continue to abound. Hardly a day seems to pass without my reading that it’s time to “roll up our sleeves” and “save the planet”; that the problem of climate change can be “solved” if we summon the collective will. Although this message was probably still true in 1988, when the science became fully clear, we’ve emitted as much atmospheric carbon in the past thirty years as we did in the previous two centuries of industrialization. The facts have changed, but somehow the message stays the same.

Psychologically, this denial makes sense. Despite the outrageous fact that I’ll soon be dead forever, I live in the present, not the future. Given a choice between an alarming abstraction (death) and the reassuring evidence of my senses (breakfast!), my mind prefers to focus on the latter. The planet, too, is still marvelously intact, still basically normal—seasons changing, another election year coming, new comedies on Netflix—and its impending collapse is even harder to wrap my mind around than death. Other kinds of apocalypse, whether religious or thermonuclear or asteroidal, at least have the binary neatness of dying: one moment the world is there, the next moment it’s gone forever. Climate apocalypse, by contrast, is messy. It will take the form of increasingly severe crises compounding chaotically until civilization begins to fray. Things will get very bad, but maybe not too soon, and maybe not for everyone. Maybe not for me.

Some of the denial, however, is more willful. The evil of the Republican Party’s position on climate science is well known, but denial is entrenched in progressive politics, too, or at least in its rhetoric. The Green New Deal, the blueprint for some of the most substantial proposals put forth on the issue, is still framed as our last chance to avert catastrophe and save the planet, by way of gargantuan renewable-energy projects. Many of the groups that support those proposals deploy the language of “stopping” climate change, or imply that there’s still time to prevent it. Unlike the political right, the left prides itself on listening to climate scientists, who do indeed allow that catastrophe is theoretically avertable. But not everyone seems to be listening carefully. The stress falls on the word theoretically.

Our atmosphere and oceans can absorb only so much heat before climate change, intensified by various feedback loops, spins completely out of control. The consensus among scientists and policy-makers is that we’ll pass this point of no return if the global mean temperature rises by more than two degrees Celsius (maybe a little more, but also maybe a little less). The I.P.C.C.—the Intergovernmental Panel on Climate Change—tells us that, to limit the rise to less than two degrees, we not only need to reverse the trend of the past three decades. We need to approach zero net emissions, globally, in the next three decades.

This is, to say the least, a tall order. It also assumes that you trust the I.P.C.C.’s calculations. New research, described last month in Scientific American, demonstrates that climate scientists, far from exaggerating the threat of climate change, have underestimated its pace and severity. To project the rise in the global mean temperature, scientists rely on complicated atmospheric modelling. They take a host of variables and run them through supercomputers to generate, say, ten thousand different simulations for the coming century, in order to make a “best” prediction of the rise in temperature. When a scientist predicts a rise of two degrees Celsius, she’s merely naming a number about which she’s very confident: the rise will be at least two degrees. The rise might, in fact, be far higher...(continues)
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Readers respond:

Can We Stop Climate Change?

Jonathan Franzen argues that it is delusional to think we can still save the planet from climate change, because rising temperatures will inevitably cause global catastrophe (“What If We Stopped Pretending?,” September 8th, newyorker.com/franzen). He says that we should resign ourselves to the destruction to come. This argument promotes complacency and hopelessness, and it gives an easy out to people who might otherwise advocate for the political action we need. I trust the climate scientists and activists who believe we have the resources to create a hopeful future. Franzen does not offer reality—he offers defeat.

Judy Schneier
Brooklyn, N.Y.

If environmentalists resent Franzen’s piece, it is only because it presents the state of human inaction on climate in a well-reasoned, clear-sighted, and complex way. We cannot prevent cataclysmic temperatures and extreme weather. Wouldn’t we all feel better if we acknowledged that fact and acted accordingly?

Linda J. Drake
Denver, Colo.

The most exemplary of the new books on climate change—David Wallace-Wells’s “The Uninhabitable Earth” and Bill McKibben’s “Falter”—struggle for an honesty that does not counsel despair. Franzen’s argument, which suggests that attempts to mobilize are at odds with conservation and even with moral clarity, is an unhelpful distortion of the truth. We have the money and the technology to save ourselves. The tragedy, if it comes to that, will be that we don’t do so, even though we can.

Tom Athanasiou
Albany, Calif.

I quibble with Franzen’s assertion that one of our best defenses against global chaos is to maintain functioning democracies and civil society. Franzen must see how poorly democracies have fared in the past few decades—just ask Francis Fukuyama or George Soros. If we want to confront the coming climate apocalypse, we must, as Franzen says, “institute draconian conservation measures.” Left to our own devices, most of us will keep destroying the planet, one Amazon Prime order at a time, and we’ll keep voting for whichever Drumpf or Bolsonaro lets us do it. Democracy may well be the worst answer to the question of climate change.

Emily Otto Kaplan
St. Louis, Mo.

My only complaint about Franzen’s piece is that it should have been published in 1970, when we still had a chance.

Walter Haugen
Fougax-et-Barrineuf, France

Franzen’s essay is a welcome discussion of reality. At our current rate of progress, we cannot stop global warming. But Franzen says he is not a scientist, and it shows. In the last few decades, science has enabled us to manipulate molecules of DNA as easily as a carpenter builds a table. Technologically speaking, developing safe and controllable methods to combat rising temperatures is a much easier task. Franzen deserves credit for advancing the discussion, but he should recognize that what we need is a large government-funded research program—one that gives science the chance to stop global warming.

Robert Eisenberg
Chicago, Ill.

Yes, the climate reality is desperate. But caving like this? Pathetic. I could never explain to my classroom of fourth graders this kind of moral surrender.

Siri Bardarson
Freeland, Wash.This article appears in the print edition of the September 30, 2019, issue.

Friday, September 20, 2019

Al Gore: The Climate Crisis Is the Battle of Our Time, and We Can Win

Al Gore: The Climate Crisis Is the Battle of Our Time, and We Can Win

We have the tools. Now we are building the political power.
By Al Gore

Mr. Gore was the 45th vice president of the United States.
Sept. 20, 2019

Things take longer to happen than you think they will, but then they happen much faster than you thought they could.

The destructive impacts of the climate crisis are now following the trajectory of that economics maxim as horrors long predicted by scientists are becoming realities.

More destructive Category 5 hurricanes are developing, monster fires ignite and burn on every continent but Antarctica, ice is melting in large amounts there and in Greenland, and accelerating sea-level rise now threatens low-lying cities and island nations.

Tropical diseases are spreading to higher latitudes. Cities face drinking water shortages. The ocean is becoming warmer and more acidic, destroying coral reefs and endangering fish populations that provide vital protein consumed by about a billion people.

Worsening droughts and biblical deluges are reducing food production and displacing millions of people. Record-high temperatures threaten to render areas of the Middle East and the Persian Gulf, North Africa and South Asia uninhabitable. Growing migrations of climate refugees are destabilizing nations. A sixth great extinction could extinguish half the living species on earth.

Finally people are recognizing that the climate is changing, and the consequences are worsening much faster than most thought was possible. A record 72 percent of Americans polled say that the weather is growing more extreme. And yet every day we still emit more than 140 million tons of global warming pollution worldwide into the atmosphere, according to the Intergovernmental Panel on Climate Change. I often echo the point made by the climate scientist James Hansen: The accumulation of carbon dioxide, methane and other greenhouse gases — some of which will envelope the planet for hundreds and possibly thousands of years — is now trapping as much extra energy daily as 500,000 Hiroshima-class atomic bombs would release every 24 hours.

This is the crisis we face.

Now we need to ask ourselves: Are we really helpless and unwilling to respond to the gravest threat faced by civilization? Is it time, as some have begun to counsel, to despair, surrender and focus on “adapting” to the progressive loss of the conditions that have supported the flourishing of humanity? Are we really moral cowards, easily manipulated into lethargic complacency by the huge continuing effort to deceive us into ignoring what we see with our own eyes?

More damage and losses are inevitable, no matter what we do, because carbon dioxide remains for so long in the atmosphere. So we will have to do our best to adapt to unwelcome changes. But we still retain the ability to avoid truly catastrophic, civilization-ending consequences if we act quickly.

Greta Thunberg at the climate protest in New York on Friday.

This is our generation’s life-or-death challenge. It is Thermopylae, Agincourt, Trafalgar, Lexington and Concord, Dunkirk, Pearl Harbor, the Battle of the Bulge, Midway and Sept. 11. At moments of such crisis, the United States and the world have to be mobilized, and before we can be mobilized, we have to be inspired to believe the battle can be won. Is it really too much to ask now that politicians summon the courage to do what most all of them already know is necessary?

We have the technology we need. That economic maxim about slow-fast phenomena, first articulated by the M.I.T. economist Rudiger Dornbusch and known as Dornbusch’s Law, also explains the tsunami of technological and economic change that has given us tools to sharply reduce global warming pollution much faster than we thought was possible only a short time ago. For example, according to the research group Bloomberg New Energy Finance, as recently as 2014 — a year before the Paris climate agreement was reached — electricity from solar and wind was cheaper than new coal and gas plants in probably 1 percent of the world. Today, only five years later, solar and wind provide the cheapest sources of new electricity in two-thirds of the world. Within five more years, these sources are expected to provide the cheapest new electricity in the entire world. And in 10 years, solar and wind electricity will be cheaper nearly everywhere than the electricity that existing fossil fuel plants will be able to provide.

This transition is already unfolding in the largest economies. Consider the progress made by the world’s top four emitters of greenhouse gases. Last year, solar and wind represented 88 percent of the new electricity capacity installed in the 28 nations of the European Union, 65 percent in India, 53 percent in China and 49 percent in the United States.

This year, several American utilities have announced plans to close existing natural gas and coal generating plants — some with decades of useful life remaining — to replace their output with cheaper electricity from wind and solar farms connected to ever-cheaper battery storage. As the chief executive officer of the Northern Indiana Public Service Company said recently, “The surprise was how dramatically the renewables and storage proposals beat natural gas.” He added, “I couldn’t have predicted this five years ago.”

Today, the fastest-growing occupation in the United States is solar installer, according to the Bureau of Labor Statistics, and it has exceeded average job growth sixfold in the last five years. The second-fastest growing job: wind turbine service technician.

In Australia, a high-tech entrepreneur, Mike Cannon-Brookes, is reportedly planning to sell renewable electricity generated in the Northern Territories to South Asian cities over a long-distance undersea cable. Globally, close to 200 of the world’s largest companies have announced commitments to use 100 percent renewable energy, and several have already reached that goal. A growing number of cities, states and provinces have pledged to do the same.

The number of electric vehicles on the road has increased by 450 percent in the past four years, and several automobile manufacturers are shifting research and development spending away from internal combustion vehicles, because the cost-reduction curve for E. V.s is expected to soon drop the cost of the vehicle well below comparable gasoline and diesel models’. Over half of all buses in the world will be electric within the next five years, a majority in China, according to some market experts. At least 16 nations have set targets to phase out internal combustion engine vehicles.

More broadly, the evidence now indicates that we are in the early stages of a sustainability revolution that will achieve the magnitude of the Industrial Revolution and the speed of the Digital Revolution, made possible by new digital tools. To pick one example, Google has reduced the amount of electricity required to cool its enormous server farms by 40 percent using state-of-the-art artificial intelligence. No new hardware was required. Sustainable alternatives to existing methods of industrial production are being pursued by more and more companies.

A farmer-led regenerative agriculture revolution that is also underway avoids plowing and focuses on building soil health by sequestering carbon dioxide in the ground, making the land more fertile. The farmers are using rotational grazing and planting trees and diverse cover crops to enrich soil and protect against erosion.

And so far, the best available technology for pulling carbon dioxide from the air is something called a tree. That’s why many nations are starting ambitious tree planting efforts. Ethiopia recently planted 353 million trees in 12 hours, nearly double the goal of 200 million. Scientists calculate that we have enough available land worldwide to plant between one trillion and one and a half trillion trees. To protect our vast but dwindling forests, new satellites and digital tools can now monitor deforestation virtually tree by tree, so corporations will know if the products they buy were grown on razed or burned forestland.

Yet for all this promise, here is another hard truth: All of these efforts together will not be enough to reduce greenhouse gas emissions sufficiently without significant policy changes. And right now, we don’t have the right policies because the wrong policymakers are in charge. We need to end the mammoth taxpayer-funded subsidies that encourage the continued burning of fossil fuels. We need to place a direct or indirect price on carbon pollution to encourage the use of cheaper, sustainable alternatives that are already out there. New laws and regulations may be needed as well to encourage innovation and force more rapid reductions in emissions.

The political reconfiguration we have desperately needed has been excruciatingly slow in coming, but we now seem to be at an inflection point, when political change begins to unroll more rapidly than we thought was possible. It’s Dornbusch’s Law, brought to politics.

The people, in their true function as the sovereign power, are quickly understanding the truth of this crisis, and they are the ones who must act, especially because the president is not on speaking terms with the truth and seems well beyond the reach of reason.

This will require a ferocious attack on the complacency, complicity, duplicity and mendacity of those in Congress who have paid for their careers by surrendering their votes and judgment to powerful special interests that are sacrificing the planet for their greed. To address the climate crisis, we must address the democracy crisis so that the people themselves can reclaim control of their destiny.

As has often been the case in successful political revolutions, young people have taken up the gauntlet with inspiring passion. Greta Thunberg has stirred millions as the school strike movement she began in Sweden spread to many countries. The Sunrise Movement, the Extinction Rebellion, Zero Hour and other youth-led movements are gathering momentum daily. On Friday, hundreds of thousands of people around the world were marching and gathering to call for action on climate change. Employees of many corporations are aggressively demanding that their employers take action to help save the climate balance.

The “Blue Wave” that gave Democrats control of the House in last year’s midterm elections was fueled in part by concern about climate. The Green New Deal, introduced by Representative Alexandria Ocasio-Cortez of New York and Senator Edward J. Markey of Massachusetts, ties solutions to the climate crisis to environmental justice and a “just transition” that will create millions of well-paying jobs. This effort has won support from many Americans, just as the nuclear freeze movement of the early 1980s attracted wide approval and helped pave the way for an arms control agreement between President Ronald Reagan and Mikhail Gorbachev, the leader of the Soviet Union.

Virtually all of this year’s Democratic presidential candidates are making the climate a top priority. Many have released impressive and detailed plans that would have been unthinkable only a few years ago. A CNN poll in April found that the climate crisis was the No. 1 concern of Democrats who are registered to vote. Another recent poll showed that a record 79 percent of American adults and 86 percent of teenagers believe, finally, that the climate crisis is caused by human activity, and, even more significantly, so do 60 percent of Republicans. Americans’ disapproval of President Drumpf’s approach to the climate was higher, at 67 percent, than on any other issue.

College Republicans at dozens of schools have called on the Republican National Committee to support a carbon tax and have loudly warned the party that it will forfeit support from younger voters if it does not. Another recent poll shows that 67 percent of millennial Republican voters say their party needs to do more on climate.

Next year’s election is the crucial test of the nation’s commitment to addressing this crisis, and it is worth remembering that on the day after the 2020 election, the terms of the Paris climate accord will permit the United States to withdraw from it. We cannot allow that to happen. Political will is a renewable resource and must be summoned in this fight. The American people are sovereign, and I am hopeful that they are preparing to issue a command on the climate to those who purport to represent them: “Lead, follow, or get out of the way.” nyt
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Al Gore shared the 2007 Nobel Peace Prize with the Intergovernmental Panel on Climate Change for his work to slow global warming. He is the author of, among other books, “An Inconvenient Truth: The Crisis of Global Warming.”

Climate denial: ask a philosopher

Wednesday, September 18, 2019

How I Learned to Cycle Like a Dutchman

In the bike-friendly Netherlands, cyclists speed down the road without fearing cars. For an American, the prospect is thrilling—and terrifying.
By Dan Kois

...For cyclists used to being second-class citizens, watching bikes navigate the Netherlands is revelatory. It’s not just that Dutch train stations all house massive underground bicycle garages, with thousands of bicycles, or fietsen, locked up on tiered racks. It’s not just that every busy street has a handsome bike lane, paved in dark-red brick. It’s that on Dutch streets, bikes rule the road. They take priority in design and traffic flow. Traffic circles are laid out so that cyclists need never stop for cars. Busy intersections often have overpasses or underpasses, so that cyclists never have to slow down.

The 18 million residents of Holland own more than 22 million bicycles

Most important, drivers look out for cyclists, cede the right of way, and are rarely surprised by them. After all, nearly all those drivers are cyclists themselves. The eighteen million residents of the Netherlands own, in total, more than twenty-two million bicycles. Dutch kids ride in child seats practically from birth, are on balance bikes by two, and are cycling unaided by four. Old people continue to cycle, too: when pedalling gets too difficult, they switch to battery-assisted e-bikes, which now outsell standard adult bikes in the Netherlands.

When you’re biking on a Dutch street, the person next to you in a Renault Clio is driving today only because she broke her arm or has to cart furniture home from the store. Most days, she’d be biking next to you, unprotected from cars except by custom, respect, and the forethought that comes from being able to think like a cyclist. In the Netherlands, drivers don’t turn right without checking their blind spots. They don’t park in bike lanes, not even just for a minute, to drop something off. And no Dutch cyclist ever half-waves at a driver for making a required stop—they assume that drivers will see them and obey the law.

Even if something goes wrong, a biker will still likely emerge unscathed. Dutch transportation designers strive to create what Wim Bot, an official in the Dutch cyclist’s union, calls “forgiving infrastructure”—systems that allow users to make errors without causing a crash. Studies have demonstrated that when a car hits a cyclist at speeds in excess of thirty kilometres per hour the cyclist is not likely to survive. Therefore, Bot told me, “thirty kilometres is the maximum speed in every living area in the Netherlands.” This consistent speed limit means that “it’s safe to have shared space between users of different forms of mobility.” Even though nobody wears bike helmets in the Netherlands, the fatality rate there is six times smaller than that of the United States... (continues)

Tuesday, September 17, 2019

2050: How Earth Survived

BY BILL MCKIBBEN
SEPTEMBER 12, 2019
IDEAS
McKibben is the author of Falter: Has the Human Game Begun to Play Itself Out? and a co-founder of 350.org

Let’s imagine for a moment that we’ve reached the middle of the century. It’s 2050, and we have a moment to reflect—the climate fight remains the consuming battle of our age, but its most intense phase may be in our rearview mirror. And so we can look back to see how we might have managed to dramatically change our society and economy. We had no other choice.

There was a point after 2020 when we began to collectively realize a few basic things.

One, we weren’t getting out of this unscathed. Climate change, even in its early stages, had begun to hurt: watching a California city literally called Paradise turn into hell inside of two hours made it clear that all Americans were at risk. When you breathe wildfire smoke half the summer in your Silicon Valley fortress, or struggle to find insurance for your Florida beach house, doubt creeps in even for those who imagined they were immune.

Two, there were actually some solutions. By 2020, renewable energy was the cheapest way to generate electricity around the planet—in fact, the cheapest way there ever had been. The engineers had done their job, taking sun and wind from quirky backyard DIY projects to cutting-edge technology. Batteries had plummeted down the same cost curve as renewable energy, so the fact that the sun went down at night no longer mattered quite so much—you could store its rays to use later.

And the third realization? People began to understand that the biggest reason we weren’t making full, fast use of these new technologies was the political power of the fossil-fuel industry. Investigative journalists had exposed its three-decade campaign of denial and disinformation, and attorneys general and plaintiffs’ lawyers were beginning to pick them apart. And just in time.

These trends first intersected powerfully on Election Day in 2020. The Halloween hurricane that crashed into the Gulf didn’t just take hundreds of lives and thousands of homes; it revealed a political seam that had begun to show up in polling data a year or two before. Of all the issues that made suburban Americans—women especially—­uneasy about President Drumpf, his stance on climate change was near the top. What had seemed a modest lead for the Democratic challenger widened during the last week of the campaign as damage reports from Louisiana and Mississippi rolled in; on election night it turned into a rout, and the analysts insisted that an under­appreciated “green vote” had played a vital part—after all, actual green parties in Canada, the U.K. and much of continental Europe were also outperforming expectations. Young voters were turning out in record numbers: the Greta Generation, as punsters were calling them, made climate change their No. 1 issue... (continues)

Money Is the Oxygen on Which the Fire of Global Warming Burns

What if the banking, asset-management, and insurance industries moved away from fossil fuels?

By Bill McKibben

I’m skilled at eluding the fetal crouch of despair—because I’ve been working on climate change for thirty years, I’ve learned to parcel out my angst, to keep my distress under control. But, in the past few months, I’ve more often found myself awake at night with true fear-for-your-kids anguish. This spring, we set another high mark for carbon dioxide in the atmosphere: four hundred and fifteen parts per million, higher than it has been in many millions of years. The summer began with the hottest June ever recorded, and then July became the hottest month ever recorded. The United Kingdom, France, and Germany, which have some of the world’s oldest weather records, all hit new high temperatures, and then the heat moved north, until most of Greenland was melting and immense Siberian wildfires were sending great clouds of carbon skyward. At the beginning of September, Hurricane Dorian stalled above the Bahamas, where it unleashed what one meteorologist called “the longest siege of violent, destructive weather ever observed” on our planet. The scientific warnings of three decades ago are the deadly heat advisories and flash-flood alerts of the present, and, as for the future, we have hard deadlines. Last fall, the world’s climate scientists said that, if we are to meet the goals we set in the 2015 Paris climate accord—which would still raise the mercury fifty per cent higher than it has already climbed—we’ll essentially need to cut our use of fossil fuels in half by 2030 and eliminate them altogether by mid-century. In a world of Drumpfs and Putins and Bolsonaros and the fossil-fuel companies that back them, that seems nearly impossible. It’s not technologically impossible: in the past decade, the world’s engineers have dropped the price of solar and wind power by ninety and seventy per cent, respectively. But we’re moving far too slowly to exploit the opening for rapid change that this feat of engineering offers. Hence the 2 a.m. dread.

There’s good news, too: as the crisis grows more obvious, far more people are joining in the fight. In the year since the scientists imposed that deadline, we’ve seen the rise of the Green New Deal, the cheeky exploits of Extinction Rebellion, and the global spread of the school strikes started by the Swedish teen-ager Greta Thunberg. It seems that there are finally enough people to make an impact. The question is, what levers can we pull that might possibly create change within the time that we need it to happen?

Some of us have begun to change our own lives, pledging to fly less and to eat lower on the food chain. But, whatever our intentions, we’re each of us currently locked into burning a fair amount of fossil fuel: if there’s no train that goes to your destination, you can’t take it. Others—actually, often the same people—are working to elect greener candidates, lobbying to pass legislation, litigating cases headed for the Supreme Court, or going to jail to block the construction of pipelines.

These are all important efforts, but we need to do more, for the simple reason that they may not pay off fast enough. Climate change is a timed test, one of the first that our civilization has faced, and with each scientific report the window narrows. By contrast, cultural change—what we eat, how we live—often comes generationally. Political change usually involves slow compromise, and that’s in a working system, not a dysfunctional gridlock such as the one we now have in Washington. And, since we face a planetary crisis, cultural and political change would have to happen in every other major country, too.

But what if there were an additional lever to pull, one that could work both quickly and globally? One possibility relies on the idea that political leaders are not the only powerful actors on the planet—that those who hold most of the money also have enormous power, and that their power could be exercised in a matter of months or even hours, not years or decades. I suspect that the key to disrupting the flow of carbon into the atmosphere may lie in disrupting the flow of money to coal and oil and gas.

Following the money isn’t a new idea. Seven years ago, 350.org (the climate campaign that I co-founded, a decade ago, and still serve as a senior adviser) helped launch a global movement to persuade the managers of college endowments, pension funds, and other large pots of money to sell their stock in fossil-fuel companies. It has become the largest such campaign in history: funds worth more than eleven trillion dollars have divested some or all of their fossil-fuel holdings. And it has been effective: when Peabody Energy, the largest American coal company, filed for bankruptcy, in 2016, it cited divestment as one of the pressures weighing on its business, and, this year, Shell called divestment a “material adverse effect” on its performance. The divestment campaign has brought home the starkest fact of the global-warming era: that the industry has in its reserves five times as much carbon as the scientific consensus thinks we can safely burn. The pressure has helped cost the industry much of its social license; one religious institution after another has divested from oil and gas, and Pope Francis has summoned industry executives to the Vatican to tell them that they must leave carbon underground. But this, too, seems to be happening in too-slow motion. The fossil-fuel industry may be going down, but it’s going down fighting. Which makes sense, because it’s the fossil-fuel industry—it really only knows how to do one thing.

So now consider extending the logic of the divestment fight one ring out, from the fossil-fuel companies to the financial system that supports them. Consider a bank like, say, JPMorgan Chase, which is America’s largest bank and the world’s most valuable by market capitalization. In the three years since the end of the Paris climate talks, Chase has reportedly committed a hundred and ninety-six billion dollars in financing for the fossil-fuel industry, much of it to fund extreme new ventures: ultra-deep-sea drilling, Arctic oil extraction, and so on. In each of those years, ExxonMobil, by contrast, spent less than three billion dollars on exploration, research, and development. A hundred and ninety-six billion dollars is larger than the market value of BP; it dwarfs that of the coal companies or the frackers. By this measure, Jamie Dimon, the C.E.O. of JPMorgan Chase, is an oil, coal, and gas baron almost without peer.

But here’s the thing: fossil-fuel financing accounts for only about seven per cent of Chase’s lending and underwriting. The bank lends to everyone else, too—to people who build bowling alleys and beach houses and breweries. And, if the world were to switch decisively to solar and wind power, Chase would lend to renewable-energy companies, too. Indeed, it already does, though on a much smaller scale. (A spokesperson for Chase said that the bank has committed to facilitate two hundred billion dollars in “clean” financing by 2025, but did not specify where the money will go. The bank also pointed out that it has installed 2,570 solar panels at branches in California and New Jersey.) The same is true of the asset-management and insurance industries: without them, the fossil-fuel companies would almost literally run out of gas, but BlackRock and Chubb could survive without their business. It’s possible to imagine these industries, given that the world is now in existential danger, quickly jettisoning their fossil-fuel business. It’s not easy to imagine—capitalism is not noted for surrendering sources of revenue. But, then, the Arctic ice sheet is not noted for melting... (continues)

Al Gore at MTSU