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If all of this sounds familiar, it’s because we basically saw this same environmental dynamic play out several years ago with tech’s last big obsession: Crypto and web3. In that case, Bitcoin emerged as the industry’s obvious environmental sore spot due to the vast amounts of energy needed to mine coins in its proof of work model. Some estimates suggest Bitocin alone requires more energy every year than Norway’s annual electricity consumption.

rs of criticism from environmental activists however led the crypto industry to make some changes. Ethereum, the second largest currency on the blockchain, officially switched last year to a proof of stake model which supporters claim could reduce its power usage by over 99%. Other smaller coins similarly were designed with energy efficiency in mind. In the grand scheme of things, large language models are still in their infancy and it’s far from certain how its environmental report card will play out.

it faces the same daunting task that confronted Carl Bosch a century ago: How much can it bring costs down? And how fast can it scale up

They believe that over the next seven years they can bring expenses down to a level that would enable them to sell CO₂ into more lucrative markets. Air-captured CO₂ can be combined with hydrogen and then fashioned into any kind of fossil-fuel substitute you want. Instead of making bread from air, you can make fuels from air.

What Gebald and Wurzbacher really want to do is to pull vast amounts of CO₂ out of the atmosphere and bury it, forever, deep underground, and sell that service as an offset

companies like Climeworks face a quandary: How do you sell something that never existed before, something that may never be cheap, into a market that is not yet real?

It’s arguably the case, in fact, that when it comes to reducing our carbon emissions, direct air capture will be seen as an option that’s too expensive and too modest in impact. “The only way that direct air capture becomes meaningful is if we do all the other things we need to do promptly,” Hal Harvey, a California energy analyst who studies climate-friendly technologies and policies, told me

In short, the best way to start making progress toward a decarbonized world is not to rev up millions of air capture machines right now. It’s to stop putting CO₂ in the atmosphere in the first place.

If the nations of the world were to continue on the current track, it would be impossible to meet the objectives of the 2016 Paris Agreement, which set a goal limiting warming to 2 degrees Celsius or, ideally, 1.5 degrees. And it would usher in a world of misery and economic hardship. Already, temperatures in some regions have climbed more than 1 degree Celsius, as a report by the Intergovernmental Panel on Climate Change noted last October. These temperature increases have led to an increase in droughts, heat waves, floods and biodiversity losses and make the chaos of 2 or 3 degrees’ additional warming seem inconceivable

A further problem is that maintaining today’s emissions path for too long runs the risk of doing irreparable damage to the earth’s ecosystems — causing harm that no amount of technological innovation can make right. “There is no reverse gear for natural systems,” Harvey says. “If they go, they go. If we defrost the tundra, it’s game over.” The same might be said for the Greenland and West Antarctic ice sheets, or our coral reefs. Such resources have an asymmetry in their natural architectures: They can take thousands or millions of years to form, but could reach conditions of catastrophic decline in just a few decades.

To have a shot at maintaining a climate suitable for humans, the world’s nations most likely have to reduce CO₂ emissions drastically from the current level — to perhaps 15 billion or 20 billion metric tons per year by 2030; then, through some kind of unprecedented political and industrial effort, we need to bring carbon emissions to zero by around 2050

To preserve a livable environment we may also need to extract CO₂ from the atmosphere. As Wurzbacher put it, “if you take all these numbers from the I.P.C.C., you end up with something like eight to 10 billion tons — gigatons — of CO₂ that need to be removed from the air every year, if we are serious about 1.5 or 2 degrees.

Through photosynthesis, our forests take extraordinary amounts of carbon dioxide from the atmosphere, and if we were to magnify efforts to reforest clear-cut areas — or plant new groves, a process known as afforestation — we could absorb billions more metric tons of carbon in future years.

we could grow crops specifically to absorb CO₂ and then burn them for power generation, with the intention of capturing the power-plant emissions and pumping them underground, a process known as bioenergy with carbon capture and storage, or BECCS

Ever since the Industrial Revolution, human societies have produced an excess of CO₂, by taking carbon stores from deep inside the earth — in the form of coal, oil and gas — and from stores aboveground (mostly wood), then putting it into the atmosphere by burning it. It has become imperative to reverse the process — that is, take CO₂ out of the air and either restore it deep inside the earth or contain it within new surface ecosystems.

“It’s not about saying, ‘I want to plant a tree.’ It’s about saying, ‘We want to plant a billion trees.’

“We have to come to grips with the fact that we waited too long and that we took some options off the table,” Michael Oppenheimer, a Princeton scientist who studies climate and policy, told me. As a result, NETs no longer seem to be just interesting ideas; they look like necessities. And as it happens, the Climeworks machines on the rooftop do the work each year of about 36,000 trees.

air capture could likewise help counter the impact of several vital industries. “There are process emissions that come from producing iron and steel, cement and glass,” she says, “and any time you make these materials, there’s a chemical reaction that emits CO₂.” Direct air capture could even lessen the impacts of the Haber-Bosch processes for making fertilizer; by some estimates, that industry now accounts for 3 percent of all CO₂ emissions.

Wind and solar are now the cheapest forms of energy in the right locations,” Pacala says. “The return on those investments, if you calculated it, would blow the doors off anything in your portfolio. It’s like investing in early Apple. So it’s a spectacular story of success. And direct air capture is precisely the same kind of problem, in which the only barrier is that it’s too costly.”

what all the founders have in common is a belief that the cost of capturing a ton of carbon will soon drop sharply.

M.I.T.’s Howard Herzog, for instance, an engineer who has spent years looking at the potential for these machines, told me that he thinks the costs will remain between $600 and $1,000 per metric ton

He points out that because direct-air-capture machines have to move tremendous amounts of air through a filter or solution to glean a ton of CO₂ — the gas, for all its global impact, makes up only about 0.04 percent of our atmosphere — the process necessitates large expenditures for energy and big equipment. What he has likewise observed, in analyzing similar industries that separate gases, suggests that translating spreadsheet projections for capturing CO₂ into real-world applications will reveal hidden costs. “I think there has been a lot of hype about this, and it’s not going to revolutionize anything,

Climeworks’s current goal is to remove 1 percent of the world’s annual CO₂ emissions by the mid 2020s.

“Basically, we have a road map — $600, down to $400, down to $300 and $200 a ton,” Wurzbacher said. “This is over the next five years. Down to $200 we know quite well what we’re doing.” And beyond $200, Wurzbacher suggested, things get murkier.

To actually capture 1 percent of the world’s carbon emissions by 2025 would, by Gebald’s calculations, require that Climeworks build 250,000 carbon-capture plants like the ones on the roof at Hinwil. That adds up to about 4.5 million carbon collectors

The Climeworks founders therefore try to think of their product as the automotive industry might — a piece of mass-produced technology and metal, not the carbon they hope to sequester.

“Every CO₂ collector has about the same weight and dimensions of a car — roughly two tons, and roughly 2 meters by 2 meters by 2 meters,” Gebald said. “And all the methods used to produce the CO₂ collectors could be well automated. So we have the automotive industry as a model for how to produce things in large quantities for low cost.

n 1954, the economist Paul Samuelson put forward a theory that made a distinction between “private-consumption goods” — bread, cars, houses and the like — and commodities that existed apart from the usual laws of supply and demand.

the other type of commodity Samuelson was describing is something now known as a “public good,” which benefits everyone but is not bought, sold or consumed the same way

direct air capture’s success would be limited to the size of the market for private goods — soda fizz, greenhouse gas — unless governments decided to intervene and help fund the equivalent of several million (or more) lighthouses.

An intervention could take a variety of forms. It could be large grants for research to find better sorbent materials, for instance, which would be similar to government investments that long ago helped nurture the solar- and wind-power industries. But help could also come by expanding regulations that already exist.

The Climeworks founders told me they don’t believe their company will succeed on what they call “climate impact” scales unless the world puts significant prices on emissions, in the form of a carbon tax or carbon fee.

“Our goal is to make it possible to capture CO₂ from the air for below $100 per ton,” Wurzbacher says. “No one owns a crystal ball, but we think — and we’re quite confident — that by something like 2030 we’ll have a global average price on carbon in the range of $100 to $150 a ton.” There is optimism in this thinking

A company that sells a product or uses a process that creates high emissions — an airline, for instance, or a steel maker — could be required to pay carbon-removal companies $100 per metric ton or more to offset their CO₂ output. Or a government might use carbon-tax proceeds to directly pay businesses to collect and bury CO₂.

“It doesn’t cost too much to pump CO₂ underground,” Stanford’s Sally Benson says. Companies already sequester about 34 million metric tons of CO₂ in the ground every year, at a number of sites around the world, usually to enhance the oil-drilling process. “The costs range from $2 to $15 per ton. So the bigger cost in all of this is the cost of carbon capture.”

The weekend before, Gutknecht told me, he received 900 unsolicited inquiries by email. Many were from potential customers who wanted to know how soon Climeworks could bury their CO₂ emissions, or how much a machine might cost them.

A Climeworks app could be installed on my smartphone, he explained. It could then be activated by my handset’s location services. “You fly over here to Europe,” he explained, “and the app tells you that you have just burned 1.7 tons of CO₂. Do you want to remove that? Well, Climeworks can remove it for you. Click here. We’ll charge your credit card.

The vast and constant market demand for fuel is why Carbon Engineering has staked its future on synthetics. The world currently burns about 100 million barrels of oil a day.

“So let’s say you’d have to supply something like 50 million barrels a day in 2050 of fuels,” he said. “That’s still a monster market.”

Carbon Engineering’s chief executive, added that direct-air-capture synthetics have an advantage over traditional fossil fuels: They won’t have to spend a dime on exploration

our plants, you can build it right in the middle of California, wherever you have air and water.” He told me that the company’s first large-scale facility should be up and running by 2022, and will turn out at least 500 barrels a day of fuel feedstock — the raw material sent to refineries.

Climeworks recently joined a consortium of European countries to produce synthetic methane that will be used by a local trucking fleet. With different tweaks and refinements, the process could be adapted for diesel, gasoline, jet fuel — or it could be piped directly to local neighborhoods as fuel for home furnaces.

the new fuels are not necessarily cheaper. Carbon Engineering aspires to deliver its product at an ultimate retail price of about $1 per liter, or $3.75 per gallon. What would make the product competitive are regulations in California that now require fuel sellers to produce fuels of lower “carbon intensity.” To date this has meant blending gas and diesel with biofuels like ethanol, but it could soon mean carbon-capture synthetics too.

Since they’re made from airborne CO₂ and hydrogen and could be manufactured just about anywhere, they could rearrange the geopolitical order — tempering the power of a handful of countries that now control natural-gas and oil markets.

From an environmental standpoint, air-capture fuels are not a utopian solution. Such fuels are carbon neutral, not carbon negative. They can’t take CO₂ from our industrial past and put it back into the earth

Even so, these fuels could present an enormous improvement. Transportation — currently the most significant source of emissions by sector in the United States — could cease to be a net emitter of CO₂

“If you can do one carbon-capture facility, where Carbon Engineering or Climeworks can build a big plant, great. You need to do that 5,000 times. And to capture a million tons of CO₂ with direct air capture, you need a small power plant just to run that facility. So if you’re going to build one direct-air-capture facility every day for the next 30 years to get to some of these scenarios, then in addition, we have to build a new mini power plant every day as well.

It’s also the case that you have to address two extraordinary problems at the same time, Peters added. “To reach 1.5 degrees, we need to halve emissions every decade,” he said. That would mean persuading entire nations, like China and the United States, to switch from burning coal to using renewables at precisely the same time that we make immense investments in negative-emission technologies.

this would need to be done even as governments choose among competing priorities:

“The idea of bringing direct air capture up to 10 billion tons by the middle or later part of the century is such a herculean task it would require an industrial scale-up the likes of which the world has never seen,”

Pacala wasn’t pessimistic about making a start. He seemed to think it was necessary for the federal government to begin with significant research and investments in the technology — to see how far and fast it could move forward, so that it’s ready as soon as possible

Gebald and Wurzbacher seemed to regard the climate challenge in mathematical terms. How many gigatons needed to be removed? How much would it cost per ton? How many Climeworks machines were required? Even if the figures were enormous, even if they appeared impossible, to see the future their way was to redefine the problem, to move away from the narrative of loss, to forget the multiplying stories of dying reefs and threatened coastlines — and to begin to imagine other possibilities.

educators say the newly adopted and proposed laws are already forcing teachers to second-guess whether they can lead students in conversations about race and structural racism that many feel are critical at a time the nation is navigating an important reckoning on those issues.

In Texas, a bill that has passed both chambers of the Republican-controlled Legislature would impose restrictions similar to Oklahoma's, including banning public universities from requiring students to take diversity training. It would also require teachers who discuss ugly episodes in history, or controversial current events, to explore "contending perspectives without giving deference to any one perspective."

"What if they say the wrong thing?" Lewis said. "What if somebody in their class during the critical thinking brings up the word oppression or systemic racism? Are they in danger? Is their job in danger?"

"We need to do it, because our students desire it," she said. "But how do we do that without opening Oklahoma City public schools up to a lawsuit?"

Lewis acknowledged that in a conservative state such as Oklahoma, there are many parents – especially white ones – who support the idea of shielding their children from uncomfortable conversations about race. But she said that's why they're so important.

Texas teachers already feel that pressure, including one of her colleagues who during the pandemic gave students a virtual lesson on race and prejudice in U.S. society.

"Then he wrote an email to the administration complaining that the teacher was accusing his child of being a racist when they were having a conversation about implicit bias and what implicit bias is and how it affects us," Dougherty said.

She said she knows teachers who are already self-censoring. They're "afraid to speak out on issues because they feel there are going to be repercussions from their districts," she said.

"Does the state of Texas want me to stand up and spend class time saying, well, let's look at all sides of this topic?" Kleiman said. "I don't think that's what the state of Texas wants. But that's what this bill does." Facebook Twitter Flipboard Email

"Companies that exploit their workers have no place doing business in the United States," said Secretary of Homeland Security Alejandro Mayorkas in a statement. "Products made from forced labor not only exploit workers, but hurt American businesses and expose consumers to unethical purchases."

Earlier this week, U.S. Trade Representative Katherine Tai also called attention to the issue of forced labor on fishing vessels, submitting a proposal to the World Trade Organization to curb subsidies to fishing activities that involve the use of forced labor and requiring that member countries recognize the problem.

The Trump administration, during its last week in office, implemented a ban on the import of cotton and tomato products from China's Xinjiang region. The sweeping prohibition followed allegations that products were being produced by Uighur Muslims working under involuntary conditions and forced labor.

In September, in a similar effort, the U.S. prohibited the import of certain Chinese-made hair products, apparel and computer parts over concerns of forced labor — again in the Xinjiang region.

"DHS will continue to aggressively investigate the use of forced labor by distant water fishing vessels, and by a wide range of other industries," said Secretary Mayorkas in a news briefing. "Producers and U.S. importers alike should understand that there will be consequences for entities that attempt to exploit workers to sell goods in the United States." Facebook Twitter Flipboard Email

When Newsweek ranked the “world’s best countries” based on measures of health, education and politics, the United States ranked 11th. In the 2011 Quality of Life Index by Nation Ranking, the United States was 31st. Similarly, in recent rankings of the world’s most livable cities, the Economist Intelligence Unit has the top American entry at No. 29, Mercer’s Quality of Living Survey has the first United States entry at No. 31 and Monocle magazine showed only 3 United States cities in the top 25.

On each of these lists, the top performers were heavily concentrated in Northern Europe, Australia and Canada with strong showings in East Asian countries from Japan to Singapore. It is no accident that there is a heavy overlap between the top performing countries and those that also outperform the United States in terms of educational performance

Nearly all the world’s quality-of-life leaders are also countries that spend more on infrastructure than the United States does. In addition, almost all are more environmentally conscious and offer more comprehensive social safety nets and national health care to their citizens.

providing the basics to ensure a high quality of life is not a formula for excess or the kind of economic calamities befalling parts of Europe today. For example, many of the countries that top quality-of-life lists, like Sweden, Luxembourg, Denmark, the Netherlands and Norway, all rank high in lists of fiscally responsible nations — well ahead of the United States, which ranks 28th on the Sovereign Fiscal Responsibility Index.

at the same time, countries that could hardly hope to outperform the world in any category are far ahead of us when it comes to things that matter more to people

some of the metrics we rate as most important, like G.D.P., stock indices or trade data, are so deeply flawed as to be irrelevant or worse, dangerous distractions

As a country we have consistently relied on indicators that keep us focused on the interests of business, financial institutions or the defense industry whereas equity, quality of life and even social mobility metrics are played down.

in the midst of the Great Depression, Congress, showing a great deal more intellectual curiosity than it does today, commissioned a group of economists led by a future Nobel Prize winner named Simon Kuznets to better measure economic activity.

Not only were they aware that the statistic they devised ignored many types of economic activity — from the work of housewives to illegal enterprises — they also knew their number did not assess the social benefits of what they were tracking.

Kuznets warned of this: “The welfare of a nation can, therefore, scarcely be inferred from a measurement of national income” like the one they created. That hasn’t stopped us from making this misleading number perhaps the most influential statistic in the world.

Americans use G.D.P. in discussions about how well we are doing. It’s at the heart of discussions of whether we are in a recession or not, ahead or falling behind.

Yet, when China “passes” us, it will remain for the most part a very poor country racked with social problems.

A country, for example, that overemphasizes G.D.P. growth and market performance is likely to focus policies on the big drivers of those — corporations and financial institutions — even when, as during the recent past, there has been little correlation between the performance of big businesses or elites and that of most people.

Even John Locke, who famously enumerated our fundamental rights as being to life, liberty and property, qualified this by asserting that people should appropriate only what they could use, leaving “enough and as good” for others.

Thomas Jefferson later consciously replaced the right to property with a right to “the pursuit of happiness.” And happiness has become the watchword for those seeking different measures that might better guide governments.

maturing societies can offer many benefits to their citizens that are unavailable to most in the rapidly growing world — the products of rich educational and cultural resources, capable institutions, stability and prosperity.

We, as a developed nation, are unlikely to grow at the rapid pace of emerging powers (the United States is currently ranked 127th in real G.D.P. growth rate)

“We’re not going to recycle our way out of this,” Mr. Weiss of ClientEarth said.

Environmental groups also say that recycling has not proved effective at the scale necessary: Only 9 percent of all plastics ever made have been recycled, according to the United Nations, with most of the rest ending up in landfills and dumps.

The company said that it reduced its plastic consumption by 12 percent from 2018 to 2021, and that it has committed to use only reusable, recyclable or compostable plastic packaging by 2025. But Danone is not on track to reach that target, according to a report by the Ellen MacArthur Foundation, which set up a voluntary program with the United Nations for big companies to address plastic pollution.

To sue Danone, the environmental groups have relied on the so-called duty of vigilance law, a groundbreaking piece of legislation that France passed in 2017. It requires large companies to take effective measures to identify and prevent human rights violations and environmental damages throughout their chain of activity.

The French duty of vigilance law, the first of its kind in Europe, has since inspired similar legislation in Germany and the Netherlands, as well as a proposed European Union directive.

There is nothing like a duty of vigilance law in the United States. The Break Free From Plastic Pollution Act, which would require plastic producers to finance waste and recycling programs, and ban single-use plastic bags and the exporting of plastic waste to developing countries, is currently in committee.

“It’s often about streamlining existing practices,” said Pauline Barraud de Lagerie, a sociologist at University Paris Dauphine who published a book on corporate responsibility. She added that by suing companies, “N.G.O.s are trying to somehow bring back an obligation of result.”So far, around 15 legal cases based on the French law have been reported. Half of them have gone to court and are still awaiting judgment, which could take years.

The lawsuit is part of a wider trend of climate litigation that has gained momentum in recent years, expanding the climate fight beyond traditional demonstrations and civil disobedience initiatives.

The number of climate change lawsuits globally has more than doubled from 2017 to 2022, from about 900 to more than 2,000 ongoing or concluded cases, according to data from the Grantham Research Institute and the Sabin Center for Climate Change Law.

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it’s also possible that a decades long accretion of regulation has come to weigh on new-business formation and growth; that for all the tales of Silicon Valley swashbuckling, most Americans have become more cautious and less entrepreneurial; or that—and this argument springs straight from Christensen’s keyboard—the pressures of the financial market and a preoccupation with corporate financial metrics have left most businesses “afraid to pursue what they see as risky innovations” and focused instead on cutting costs.

some companies are pursuing risky innovations and disrupting established industries. Business publications are full of stories about them: Google and Uber and Amazon and Salesforce and Workday and many more. They just haven’t had a measurable impact on the overall economy yet. One group of economists says to give it a few years— the adoption of new technologies has always affected productivity in fits and starts, and the rise of smartphones and cloud computing and Big Data will show up in the numbers eventually. The other view is that today’s technological innovations pale in significance beside electricity and the internal combustion engine—they’ll have some positive impact, but growth will be slower than it used to be.

Last month, it eclipsed Walmart as the most valuable retailer in the country, with a market valuation of $250 billion, and Forbes deemed Mr. Bezos the fifth-wealthiest person on earth.

Others who cycled in and out of the company said that what they learned in their brief stints helped their careers take off. And more than a few who fled said they later realized they had become addicted to Amazon’s way of working.

Amazon may be singular but perhaps not quite as peculiar as it claims. It has just been quicker in responding to changes that the rest of the work world is now experiencing: data that allows individual performance to be measured continuously, come-and-go relationships between employers and employees, and global competition in which empires rise and fall overnight. Amazon is in the vanguard of where technology wants to take the modern office: more nimble and more productive, but harsher and less forgiving.

“Organizations are turning up the dial, pushing their teams to do more for less money, either to keep up with the competition or just stay ahead of the executioner’s blade,”

At its best, some employees said, Amazon can feel like the Bezos vision come to life, a place willing to embrace risk and strengthen ideas by stress test. Employees often say their co-workers are the sharpest, most committed colleagues they have ever met, taking to heart instructions in the leadership principles like “never settle” and “no task is beneath them.”

In contrast to companies where declarations about their philosophy amount to vague platitudes, Amazon has rules that are part of its daily language and rituals, used in hiring, cited at meetings and quoted in food-truck lines at lunchtime

“You can work long, hard or smart, but at Amazon.com you can’t choose two out of three,” Mr. Bezos wrote in his 1997 letter to shareholders

mazon, though, offers no pretense that catering to employees is a priority. Compensation

As the company has grown, Mr. Bezos has become more committed to his original ideas, viewing them in almost moral terms, those who have worked closely with him say. “My main job today: I work hard at helping to maintain the culture,”

perhaps the most distinctive is his belief that harmony is often overvalued in the workplace — that it can stifle honest critique and encourage polite praise for flawed ideas. Instead, Amazonians are instructed to “disagree and commit” (

According to early executives and employees, Mr. Bezos was determined almost from the moment he founded Amazon in 1994 to resist the forces he thought sapped businesses over time — bureaucracy, profligate spending, lack of rigor. As the company grew, he wanted to codify his ideas about the workplace, some of them proudly counterintuitive, into instructions simple enough for a new worker to understand, general enough to apply to the nearly limitless number of businesses he wanted to enter and stringent enough to stave off the mediocrity he feared.

Company veterans often say the genius of Amazon is the way it drives them to drive themselves. “If you’re a good Amazonian, you become an Amabot,” said one employee, using a term that means you have become at one with the system.

But in its offices, Amazon uses a self-reinforcing set of management, data and psychological tools to spur its tens of thousands of white-collar employees to do more and more. “The company is running a continual performance improvement algorithm on its staff,” said Amy Michaels, a former Kindle marketer.

As the newcomers acclimate, they often feel dazzled, flattered and intimidated by how much responsibility the company puts on their shoulders and how directly Amazon links their performance to the success of their assigned projects

Every aspect of the Amazon system amplifies the others to motivate and discipline the company’s marketers, engineers and finance specialists: the leadership principles; rigorous, continuing feedback on performance; and the competition among peers who fear missing a potential problem or improvement and race to answer an email before anyone else.

many others said the culture stoked their willingness to erode work-life boundaries, castigate themselves for shortcomings (being “vocally self-critical” is included in the description of the leadership principles) and try to impress a company that can often feel like an insatiable taskmaster.

“One time I didn’t sleep for four days straight,” said Dina Vaccari, who joined in 2008 to sell Amazon gift cards to other companies and once used her own money, without asking for approval, to pay a freelancer in India to enter data so she could get more done. “These businesses were my babies, and I did whatever I could to make them successful.”

To prod employees, Amazon has a powerful lever: more data than any retail operation in history. Its perpetual flow of real-time, ultradetailed metrics allows the company to measure nearly everything its customers do:

Amazon employees are held accountable for a staggering array of metrics, a process that unfolds in what can be anxiety-provoking sessions called business reviews, held weekly or monthly among various teams. A day or two before the meetings, employees receive printouts, sometimes up to 50 or 60 pages long, several workers said. At the reviews, employees are cold-called and pop-quizzed on any one of those thousands of numbers.

Ms. Willet’s co-workers strafed her through the Anytime Feedback Tool, the widget in the company directory that allows employees to send praise or criticism about colleagues to management. (While bosses know who sends the comments, their identities are not typically shared with the subjects of the remarks.) Because team members are ranked, and those at the bottom eliminated every year, it is in everyone’s interest to outperform everyone else.

many workers called it a river of intrigue and scheming. They described making quiet pacts with colleagues to bury the same person at once, or to praise one another lavishly. Many others, along with Ms. Willet, described feeling sabotaged by negative comments from unidentified colleagues with whom they could not argue

The rivalries at Amazon extend beyond behind-the-back comments. Employees say that the Bezos ideal, a meritocracy in which people and ideas compete and the best win, where co-workers challenge one another “even when doing so is uncomfortable or exhausting,” as the leadership principles note, has turned into a world of frequent combat

Resources are sometimes hoarded. That includes promising job candidates, who are especially precious at a company with a high number of open positions. To get new team members, one veteran said, sometimes “you drown someone in the deep end of the pool,” then take his or her subordinates. Ideas are critiqued so harshly in meetings at times that some workers fear speaking up.

David Loftesness, a senior developer, said he admired the customer focus but could not tolerate the hostile language used in many meetings, a comment echoed by many others.

Each year, the internal competition culminates at an extended semi-open tournament called an Organization Level Review, where managers debate subordinates’ rankings, assigning and reassigning names to boxes in a matrix projected on the wall. In recent years, other large companies, including Microsoft, General Electric and Accenture Consulting, have dropped the practice — often called stack ranking, or “rank and yank” — in part because it can force managers to get rid of valuable talent just to meet quotas.

Molly Jay, an early member of the Kindle team, said she received high ratings for years. But when she began traveling to care for her father, who was suffering from cancer, and cut back working on nights and weekends, her status changed. She was blocked from transferring to a less pressure-filled job, she said, and her boss told her she was “a problem.” As her father was dying, she took unpaid leave to care for him and never returned to Amazon.

“When you’re not able to give your absolute all, 80 hours a week, they see it as a major weakness,” she said.

A woman who had thyroid cancer was given a low performance rating after she returned from treatment. She says her manager explained that while she was out, her peers were accomplishing a great deal. Another employee who miscarried twins left for a business trip the day after she had surgery. “I’m sorry, the work is still going to need to get done,” she said her boss told her. “From where you are in life, trying to start a family, I don’t know if this is the right place for you.”

A woman who had breast cancer was told that she was put on a “performance improvement plan” — Amazon code for “you’re in danger of being fired” — because “difficulties” in her “personal life” had interfered with fulfilling her work goals. Their accounts echoed others from workers who had suffered health crises and felt they had also been judged harshly instead of being given time to recover.

Amazon retains new workers in part by requiring them to repay a part of their signing bonus if they leave within a year, and a portion of their hefty relocation fees if they leave within two years.

In interviews, 40-year-old men were convinced Amazon would replace them with 30-year-olds who could put in more hours, and 30-year-olds were sure that the company preferred to hire 20-somethings who would outwork them. A

A 2013 survey by PayScale, a salary analysis firm, put the median employee tenure at one year, among the briefest in the Fortune 500

Recruiters, though, also say that other businesses are sometimes cautious about bringing in Amazon workers, because they have been trained to be so combative. The derisive local nickname for Amazon employees is “Amholes” — pugnacious and work-obsessed.

By the time the dust settles in three years, Amazon will have enough space for 50,000 employees or so, more than triple what it had as recently as 2013.

just as Jeff Bezos was able to see the future of e-commerce before anyone else, she added, he was able to envision a new kind of workplace: fluid but tough, with employees staying only a short time and employers demanding the maximum.

“Amazon is driven by data,” said Ms. Pearce, who now runs her own Seattle software company, which is well stocked with ex-Amazonians. “It will only change if the data says it must — when the entire way of hiring and working and firing stops making economic sense.”

Quantification is the most overwhelming influence upon the contemporary American understanding of, well, everything. It is enabled by the idolatry of data, which has itself been enabled by the almost unimaginable data-generating capabilities of the new technology

The distinction between knowledge and information is a thing of the past, and there is no greater disgrace than to be a thing of the past.

even as technologism, which is not the same as technology, asserts itself over more and more precincts of human life, so too does scientism, which is not the same as science.

The notion that the nonmaterial dimensions of life must be explained in terms of the material dimensions, and that nonscientific understandings must be translated into scientific understandings if they are to qualify as knowledge, is increasingly popular inside and outside the university

The contrary insistence that the glories of art and thought are not evolutionary adaptations, or that the mind is not the brain, or that love is not just biology’s bait for sex, now amounts to a kind of heresy.

So, too, does the view that the strongest defense of the humanities lies not in the appeal to their utility — that literature majors may find good jobs, that theaters may economically revitalize neighborhoods — but rather in the appeal to their defiantly nonutilitarian character, so that individuals can know more than how things work, and develop their powers of discernment and judgment, their competence in matters of truth and goodness and beauty, to equip themselves adequately for the choices and the crucibles of private and public life.

are we becoming posthumanists?

In American culture right now, as I say, the worldview that is ascendant may be described as posthumanism.

The posthumanism of the 1970s and 1980s was more insular, an academic affair of “theory,” an insurgency of professors; our posthumanism is a way of life, a social fate.

In “The Age of the Crisis of Man: Thought and Fiction in America, 1933-1973,” the gifted essayist Mark Greif, who reveals himself to be also a skillful historian of ideas, charts the history of the 20th-century reckonings with the definition of “man.”

The S&P 500-stock index has risen more than 23 percent since Election Day last year. Along with a rising real estate market, that's helped to push the nation's total household wealth to $96.9 trillion. However, as NPR noted last spring, only about half the people in the country own stocks either directly or through retirement accounts.

In August, Kenya introduced the world's toughest law aimed at reducing plastic pollution, where Kenyans who produce, sell or even use plastic bags risk up to four years or $40,000 fines. British Prime Minister Theresa May said she would eradicate avoidable plastic waste by 2042.Richard Eckersley, a former Manchester United footballer, says he recently set up the UK's first zero waste shop, Earth.Food.Love, with his wife in Totnes, southwest England. He says "plastic is an amazing material," the problem is how we use it.

Still, we should do something. We need to learn how much, if at all, we can influence emissions.

Politics is present-oriented.

Most nations aren’t willing to scrap the energy status quo — the very basis of modern civilization — before having a practical substitute

That’s a standard carbon tax. What defines the “carbon dividend” plan is that all the money collected would be rebated to households.

a “carbon dividend” plan. This would be a good start.

Under one proposal, the government would slap a $43 tax on each ton of CO2. That would equal about 38 cents on a gallon of gasoline

It would raise about $180 billion in the tax’s first year, he says. If the “dividend” — the tax rebate — were distributed evenly, that would be about $1,400 per household.

Without the tax, projected CO2 emissions would be 5.4 billion metric tons in 2035. With the tax, the total would be 3.6 billion metric tons, a 33 percent decline

the initial increase in gasoline prices of 38 cents a gallon is within normal market fluctuations. The rebate would sweeten the tax. Consumers who cut fossil fuel use would come out ahead.

The tax has another advantage. It decentralizes decision-making to individual companies and people

None of this has changed my long-standing skepticism that, without some major technological breakthrough (safer nuclear power?), it will be exceedingly hard to halt the increase in atmospheric concentrations of greenhouse gases. The required changes in lifestyle and economic activity are simply too great.

The first step is to clarify what constitutes racist behavior. Defining it makes denying it or calling it something else that much harder.

The final, most pernicious category undergirds the everyday black experience. When employers, educational institutions, and governmental entities do not unwind practices that disadvantage people of color in the competition with whites for economic and career mobility, that is fundamentally racist

This is racism in the first degree.

Then there is opposing or turning one’s back on anti-racism efforts, often justified by the demonization of the people courageously tackling racist behavior. I call this racism in the second degree, akin to aiding and abetting

Companies that sign on will be recognized and celebrated. Senior management teams that decline to take these basic steps will no longer be able to hide, and they will struggle to recruit and retain top talent of all colors who will prefer firms that have signed on

The most well-understood dimension involves taking actions that people of color view as overtly prejudiced—policing black citizens much differently than whites, calling the police on a black bird-watche

This dimension of racism is particularly hard to root out, because many of our most enlightened white leaders do not even realize what they are doing. This is racism in the third degree, akin to involuntary manslaughter: We are not trying to hurt anyone, but we create the conditions that shatter somebody else’s future aspirations.

Eliminating third-degree racism is the catalyst to expanding economic power for people of color, so it merits focus at the most senior levels of education, government, and business.

I have not seen 10 diversity plans that have the foundational elements that organizations require everywhere else: a fact-based diagnosis of the underlying problems, quantifiable goals, prioritized areas for investment, interim progress metrics, and clear accountability for execution

We can increase the cost of this behavior by calling on major employers to sign on to basic practices that demonstrate that black lives matter to them. These include: (1) acknowledging what constitutes third-degree racism so there is no hiding behind a lack of understanding or fuzzy math, (2) committing to developing and executing diversity plans that meet a carefully considered and externally defined standard of rigor, and (3) delivering outcomes in which the people of color have the same opportunities to advance.

Organizations cannot be meritocracies if their small number of black employees spend a third of their mental bandwidth in every meeting of every day distracted by questions of race and outcomes. Why are there not more people like me? Am I being treated differently?

Rooting out third-degree racism is what will ultimately change the narrative about race. When white people see more black people on the same path as they are, when white people are working in diverse organizations, and when they are proximate to black leaders beyond athletes and entertainers, only then will they stop fearing and feeling superior to the black people they don’t know.

When these executives are challenged on hiring practices, their first excuse is always “The pipeline of qualified candidates is too small, so we can only do so much right now.” Over the past 20 years, I have not once heard an executive follow up the “pipeline is too small” defense with a quantitative analysis of that pipeline

Employers whose efforts to increase diversity lack the same analytical and executional rigor that is taken for granted in every other part of their business engage in practices that disadvantage black people in the competition for economic opportunity. By default, this behavior protects white people’s positions of power.

South Sudan is at the bottom, with Chad, Central African Republic and Eritrea just behind.

The United States, despite its immense wealth, military power and cultural influence, ranks 28th — having slipped from 19th in 2011.

The index now puts the United States behind significantly poorer countries, including Estonia, Czech Republic, Cyprus and Greece

The United States ranks No. 1 in the world in quality of universities, but No. 91 in access to quality basic education

The U.S. leads the world in medical technology, yet we are No. 97 in access to quality health care.

The Social Progress Index finds that Americans have health statistics similar to those of people in Chile, Jordan and Albania,

“Societies that are inclusive, tolerant and better educated are better able to manage the pandemic,”

A majority of countries have lower homicide rates, and most other advanced countries have lower traffic fatality rates and better sanitation and internet access.

The United States has high levels of early marriage — most states still allow child marriage in some circumstances — and lags in sharing political power equally among all citizens

America ranks a shameful No. 100 in discrimination against minorities.

the coronavirus will affect health, longevity and education, with the impact particularly large in both the United States and Brazil.

kids in the United States get an education roughly on par with what children get in Uzbekistan and Mongolia

The decline of the United States over the last decade in this index — more than any country in the world — is a reminder that we Americans face structural problems that predate President Trump

Trump is a symptom of this larger malaise, and also a cause of its acceleration.

the share of Americans reporting in effect that every day is a bad mental health day has doubled over 25 years. “Rising distress and despair are largely American phenomenon not observed in other advanced countries,”

That’s a large gamble based on very little scientific understanding.

Contrary to the popular understanding, Sweden has not done nothing. Social distancing is in place, people are to work from home where possible and to isolate when even mildly symptomatic. Steps have been taken to shield vulnerable citizens

WHO mortality data shows Italy, the United Kingdom, Spain and the United States all have higher death rates, despite having imposed significant mitigation and suppression protocols.

by traditional metrics of deaths/capita, cases/capita, or even crude case fatality rate, they ended up seemingly in a worse position than Sweden, where bars remain open and coffee culture is booming.

A strategy should be based on a broad empirically derived consensus which takes into account both what we know, and what we do not.

We don’t know how many people have a strong immune response to the virus.

From inside this tunnel we do not know how many people are now tied to the track. We do not know how far the line runs. Or even what the final destination looks like. Sweden’s strategic inaction was predicated on the hope that they might save lives in future by taking risks now and avoiding a shutdown.

We don’t know how many people have been infected and how those infections might manifest.

We don’t know how many individuals need immunity to produce effective herd immunity.

And we don’t know if immunity to the current strain would carry over to future strains.

Even more bracing: We are unlikely to find definitive answers to these questions in the near future.

One of the key perceived advantages of Sweden’s approach was the expected reduction in economic damage. But Sweden’s economy is projected to contract by 7 percent to 10 percent of GDP this year, only slightly better than its Nordic neighbors who shut down their societies and have far less morbidity and mortality

All of that said, it is unlikely that we’ll be able to say definitively whether or not Sweden’s choice was optimal any time soon. Even comparing key metrics like cases and deaths between countries is difficult because of methodological differences in collecting data

When we consider economic damages, long-term sequelae of infection and the differential impact across marginalized groups, direct comparisons becomes extremely challenging.

sometimes there are no good decisions; only less bad ones. Sweden may be on the road to herd immunity but even if they are in fact on the path, the road is neither swift nor smooth. And it is littered with friends and relatives.

in the end, Facebook’s interest was fleeting. Mr. Zuckerberg and other senior executives largely shelved the basic research, according to previously unreported internal documents and people familiar with the effort, and weakened or blocked efforts to apply its conclusions to Facebook products.

At Facebook, “There was this soul-searching period after 2016 that seemed to me this period of really sincere, ‘Oh man, what if we really did mess up the world?’

Another concern, they and others said, was that some proposed changes would have disproportionately affected conservative users and publishers, at a time when the company faced accusations from the right of political bias.

Americans were drifting apart on fundamental societal issues well before the creation of social media, decades of Pew Research Center surveys have shown. But 60% of Americans think the country’s biggest tech companies are helping further divide the country, while only 11% believe they are uniting it, according to a Gallup-Knight survey in March.

Facebook policy chief Joel Kaplan, who played a central role in vetting proposed changes, argued at the time that efforts to make conversations on the platform more civil were “paternalistic,” said people familiar with his comments.

The high number of extremist groups was concerning, the presentation says. Worse was Facebook’s realization that its algorithms were responsible for their growth. The 2016 presentation states that “64% of all extremist group joins are due to our recommendation tools” and that most of the activity came from the platform’s “Groups You Should Join” and “Discover” algorithms: “Our recommendation systems grow the problem.”

In a sign of how far the company has moved, Mr. Zuckerberg in January said he would stand up “against those who say that new types of communities forming on social media are dividing us.” People who have heard him speak privately said he argues social media bears little responsibility for polarization.

Fixing the polarization problem would be difficult, requiring Facebook to rethink some of its core products. Most notably, the project forced Facebook to consider how it prioritized “user engagement”—a metric involving time spent, likes, shares and comments that for years had been the lodestar of its system.

Even before the teams’ 2017 creation, Facebook researchers had found signs of trouble. A 2016 presentation that names as author a Facebook researcher and sociologist, Monica Lee, found extremist content thriving in more than one-third of large German political groups on the platform.

Swamped with racist, conspiracy-minded and pro-Russian content, the groups were disproportionately influenced by a subset of hyperactive users, the presentation notes. Most of them were private or secret.

One proposal Mr. Uribe’s team championed, called “Sparing Sharing,” would have reduced the spread of content disproportionately favored by hyperactive users, according to people familiar with it. Its effects would be heaviest on content favored by users on the far right and left. Middle-of-the-road users would gain influence.

The Common Ground team sought to tackle the polarization problem directly, said people familiar with the team. Data scientists involved with the effort found some interest groups—often hobby-based groups with no explicit ideological alignment—brought people from different backgrounds together constructively. Other groups appeared to incubate impulses to fight, spread falsehoods or demonize a population of outsiders.

Mr. Pariser said that started to change after March 2018, when Facebook got in hot water after disclosing that Cambridge Analytica, the political-analytics startup, improperly obtained Facebook data about tens of millions of people. The shift has gained momentum since, he said: “The internal pendulum swung really hard to ‘the media hates us no matter what we do, so let’s just batten down the hatches.’ ”

Building these features and combating polarization might come at a cost of lower engagement, the Common Ground team warned in a mid-2018 document, describing some of its own proposals as “antigrowth” and requiring Facebook to “take a moral stance.”

Taking action would require Facebook to form partnerships with academics and nonprofits to give credibility to changes affecting public conversation, the document says. This was becoming difficult as the company slogged through controversies after the 2016 presidential election.

Asked to combat fake news, spam, clickbait and inauthentic users, the employees looked for ways to diminish the reach of such ills. One early discovery: Bad behavior came disproportionately from a small pool of hyperpartisan users.

A second finding in the U.S. saw a larger infrastructure of accounts and publishers on the far right than on the far left. Outside observers were documenting the same phenomenon. The gap meant even seemingly apolitical actions such as reducing the spread of clickbait headlines—along the lines of “You Won’t Believe What Happened Next”—affected conservative speech more than liberal content in aggregate.

Every significant new integrity-ranking initiative had to seek the approval of not just engineering managers but also representatives of the public policy, legal, marketing and public-relations departments.

“Engineers that were used to having autonomy maybe over-rotated a bit” after the 2016 election to address Facebook’s perceived flaws, she said. The meetings helped keep that in check. “At the end of the day, if we didn’t reach consensus, we’d frame up the different points of view, and then they’d be raised up to Mark.”

Disapproval from Mr. Kaplan’s team or Facebook’s communications department could scuttle a project, said people familiar with the effort. Negative policy-team reviews killed efforts to build a classification system for hyperpolarized content. Likewise, the Eat Your Veggies process shut down efforts to suppress clickbait about politics more than on other topics.

Under Facebook’s engagement-based metrics, a user who likes, shares or comments on 1,500 pieces of content has more influence on the platform and its algorithms than one who interacts with just 15 posts, allowing “super-sharers” to drown out less-active users

Accounts with hyperactive engagement were far more partisan on average than normal Facebook users, and they were more likely to behave suspiciously, sometimes appearing on the platform as much as 20 hours a day and engaging in spam-like behavior. The behavior suggested some were either people working in shifts or bots.

“We’re explicitly not going to build products that attempt to change people’s beliefs,” one 2018 document states. “We’re focused on products that increase empathy, understanding, and humanization of the ‘other side.’ ”

The debate got kicked up to Mr. Zuckerberg, who heard out both sides in a short meeting, said people briefed on it. His response: Do it, but cut the weighting by 80%. Mr. Zuckerberg also signaled he was losing interest in the effort to recalibrate the platform in the name of social good, they said, asking that they not bring him something like that again.

Mr. Uribe left Facebook and the tech industry within the year. He declined to discuss his work at Facebook in detail but confirmed his advocacy for the Sparing Sharing proposal. He said he left Facebook because of his frustration with company executives and their narrow focus on how integrity changes would affect American politics

While proposals like his did disproportionately affect conservatives in the U.S., he said, in other countries the opposite was true.

The tug of war was resolved in part by the growing furor over the Cambridge Analytica scandal. In a September 2018 reorganization of Facebook’s newsfeed team, managers told employees the company’s priorities were shifting “away from societal good to individual value,” said people present for the discussion. If users wanted to routinely view or post hostile content about groups they didn’t like, Facebook wouldn’t suppress it if the content didn’t specifically violate the company’s rules.

Sen. Richard Blumenthal (D., Conn.), the chairman of the subcommittee conducting Tuesday’s hearing, called on Mr. Zuckerberg to appear before Congress to testify, terming the company “morally bankrupt.”

Facebook has said it plans to continue doing internal research and is working on ways to make that work available to others. The company has recently battled with some academic researchers over access to its data, but Facebook says that it works cooperatively with many others.

Republican and Democratic lawmakers at the hearing renewed their calls for regulation, such as strengthening privacy and competition laws and special online protections for children, as well as toughening of the platforms’ accountability. One idea that got a particular boost was requiring more visibility into social-media data as well as the algorithms that shape users’ experiences.

“The severity of this crisis demands that we break out of previous regulatory frames,” she said. “Tweaks to outdated privacy protections…will not be sufficient.”

A good starting point, she added, would be “full access to data for research not directed by Facebook. On this foundation, we can build sensible rules and standards to address consumer harms, illegal content, data protection, anticompetitive practices, algorithmic systems and more.”

Ms. Haugen also raised national-security concerns about Facebook, citing foreign surveillance on the platform—for example, Chinese monitoring of Uyghur populations—and what she termed Facebook’s “consistent understaffing” of its counterintelligence teams.

Ms. Haugen made the case for policy changes to address her perceived concerns. In products such as cars and cigarettes, she said, independent researchers can evaluate health effects, but “the public cannot do the same with Facebook.”

“This inability to see in Facebook’s actual systems and confirm that they work as communicated is like the Department of Transportation regulating cars by only watching them drive down the highway,” she said, arguing for an independent government agency that would employ experts to audit the impact of social media.

She said that if Congress moves to change Section 230, a federal accountability law that protects Facebook and other companies from liability for user-generated content, it should distinguish between that kind of content and choices that companies make about what type of content to promote.

“Facebook should not get a pass on choices it makes to prioritize virality and growth and reactiveness over public safety,” she said.

Ms. Haugen was hired by Facebook two years ago to help protect against election interference on Facebook. She said she acted because she was frustrated by what she viewed as Facebook’s lack of openness about the platform’s potential for harm and its unwillingness to address its flaws.

“I would simply say, let’s get to work,” said Sen. John Thune (R., S.D.), who has sponsored several measures on algorithm transparency. “We’ve got some things we can do here.”

“There’s always reason for skepticism” about Congress reaching consensus on legislation, Mr. Blumenthal said after the hearing. But he added that “there are times when the dynamic is so powerful that something actually is done…I have rarely, if ever, seen the kind of unanimity on display today.”

I had other doubts, too. It seemed hubristic, or worse, to make multitrillion-dollar policy bets based on computer models trying to forecast climate patterns decades into the future. Climate activists kept promoting policies based on technologies that were either far from mature (solar energy) or sometimes actively harmful (biofuels).

Expensive efforts to curb greenhouse gas emissions in Europe and North America seemed particularly fruitless when China, India and other developing countries weren’t about to curb their own appetite for fossil fuels

just how fast is Greenland’s ice melting right now? Is this an emergency for our time, or is it a problem for the future?

His pitch was simple: The coastline we have taken for granted for thousands of years of human history changed rapidly in the past on account of natural forces — and would soon be changing rapidly and disastrously by man-made ones. A trip to Greenland, which holds one-eighth of the world’s ice on land (most of the rest is in Antarctica) would show me just how drastic those changes have been. Would I join him?

Greenland is about the size of Alaska and California combined and, except at its coasts, is covered by ice that in places is nearly two miles thick. Even that’s only a fraction of the ice in Antarctica, which is more than six times as large

Greenland’s ice also poses a nearer-term risk because it is melting faster. If all its ice were to melt, global sea levels would rise by some 24 feet. That would be more than enough to inundate hundreds of coastal cities in scores of nations, from Jakarta and Bangkok to Copenhagen and Amsterdam to Miami and New Orleans.

There was also a millenarian fervor that bothered me about climate activism, with its apocalyptic imagery (the Statue of Liberty underwater) and threats of doom unless we were willing to live far more frugally.

“We haven’t had a good positive mass balance year since the late 1990s,” he told me in a follow-on email when I asked him to explain the data for me. The losses can vary sharply by year. The annualized average over the past 30 years, he added, is 170 gigatons per year. That’s the equivalent of about 5,400 tons of ice loss per second. That “suggests that Greenland ice loss has been tracking the I.P.P.C. worse-case, highest-carbon-emission scenario.

The data shows unmistakably that Greenland’s ice is not in balance. It is losing far more than it is gaining.

scientists have been drilling ice-core samples from Greenland for decades, giving them a very good idea of climatic changes stretching back thousands of years. Better yet, a pair of satellites that detect anomalies in Earth’s gravity fields have been taking measurements of the sheet regularly for nearly 20 years, giving scientists a much more precise idea of what is happening.

it’s hard to forecast with any precision what that means. “Anyone who says they know what the sea level is going to be in 2100 is giving you an educated guess,” said NASA’s Willis. “The fact is, we’re seeing these big ice sheets melt for the first time in history, and we don’t really know how fast they can go.”

His own educated guess: “By 2100, we are probably looking at more than a foot or two and hopefully less than seven or eight feet. But we are struggling to figure out just how fast the ice sheets can melt. So the upper end of range is still not well known.”

On the face of it, that sounds manageable. Even if sea levels rise by eight feet, won’t the world have nearly 80 years to come to grips with the problem, during which technologies that help us mitigate the effects of climate change while adapting to its consequences are likely to make dramatic advances?

Won’t the world — including countries that today are poor — become far richer and thus more capable of weathering the floods, surges and superstorms?

The average rate at which sea level is rising around the world, he estimates, has more than tripled over the past three decades, to five millimeters a year from 1.5 millimeters. That may still seem minute, yet as the world learned during the pandemic, exponential increases have a way of hitting hard.

“When something is on a straight line or a smooth curve, you can plot its trajectory,” Englander said. “But sea level, like earthquakes and mudslides, is something that happens irregularly and can change rather quickly and surprise us. The point is, you can no longer predict the future by the recent past.”

In The Wall Street Journal’s editorial pages, where I used to work, the theoretical physicist Steven Koonin, a former under secretary for science in the Obama administration’s Energy Department, cast doubt on the threat from Thwaites in a voice that could have once been mine. He also thinks the risks associated with Greenland’s melting are less a product of human-induced global warming than of natural cycles in North Atlantic currents and temperatures, which over time have a way of regressing to the mean.

Even the poorest countries, while still unacceptably vulnerable, are suffering far fewer human and economic losses to climate-related disasters.

Another climate nonalarmist is Roger Pielke Jr., a professor of environmental studies at the University of Colorado Boulder. I call Pielke a nonalarmist rather than a skeptic because he readily acknowledges that the challenges associated with climate change, including sea-level rise, are real, serious and probably unstoppable, at least for many decades.

“If we have to have a problem,” he told me when I reached him by phone, “we probably want one with a slow onset that we can see coming. It’s not like an asteroid coming from space.”

“Since the 1940s, the impact of floods as a proportion of U.S. gross domestic product has dropped by 70 percent-plus,” Pielke said. “We see this around the world, across phenomena. The story is that fewer people are dying and we are having less damage proportional to G.D.P.”

“Much climate reporting today highlights short-term changes when they fit the narrative of a broken climate but then ignores or plays down changes when they don’t, often dismissing them as ‘just weather,’” he wrote in February.

Global warming is real and getting worse, Pielke said, yet still it’s possible that humanity will be able to adapt to, and compensate for, its effects.

A few years ago, I would have found voices like Koonin’s and Pielke’s persuasive. Now I’m less sure. What intervened was a pandemic.

That’s what I thought until the spring of 2020, when, along with everyone else, I experienced how swiftly and implacably nature can overwhelm even the richest and most technologically advanced societies. It was a lesson in the sort of intellectual humility I recommended for others

It was also a lesson in thinking about risk, especially those in the category known as high-impact, low-probability events that seem to be hitting us with such regularity in this century: the attacks of Sept. 11, 2001; the tsunamis of 2004 and 2011, the mass upheavals in the Arab world

What if the past does nothing to predict the future? What if climate risks do not evolve gradually and relatively predictably but instead suddenly soar uncontrollably? How much lead time is required to deal with something like sea-level rise? How do we weigh the risks of underreacting to climate change against the risks of overreacting to it?

I called Seth Klarman, one of the world’s most successful hedge-fund managers, to think through questions of risk. While he’s not an expert on climate change, he has spent decades thinking deeply about every manner of risk

And we will almost certainly have to do it from sources other than Russia, China, the Democratic Republic of Congo and other places that pose unacceptable strategic, environmental or humanitarian risks

“If you face something that is potentially existential,” he explained, “existential for nations, even for life as we know it, even if you thought the risk is, say, 5 percent, you’d want to hedge against it.”

“One thing we try to do,” he said, “is we buy protection when it’s really inexpensive, even when we think we may well not need it.” The forces contributing to climate change, he noted, echoing Englander, “might be irreversible sooner than the damage from climate change has become fully apparent. You can’t say it’s far off and wait when, if you had acted sooner, you might have dealt with it better and at less cost. We have to act now.”

In other words, an ounce of prevention is worth a pound of cure. That’s particularly true if climate change is akin to cancer — manageable or curable in its earlier stages, disastrous in its later ones.

As I’ve always believed, knowing there is grave risk to future generations — and expecting current ones to make immediate sacrifices for it — defies most of what we know about human nature. So I began to think more deeply about that challenge, and others.

For the world to achieve the net-zero goal for carbon dioxide emissions by 2050, according to the International Energy Agency, we will have to mine, by 2040, six times the current amounts of critical minerals — nickel, cobalt, copper, lithium, manganese, graphite, chromium, rare earths and other minerals and elements — needed for electric vehicles, wind turbines and solar panels.

The poster child for this kind of magical thinking is Germany, which undertook a historic Energiewende — “energy revolution” — only to come up short. At the turn of the century, Germany got about 85 percent of its primary energy from fossil fuels. Now it gets about 78 percent, a puny reduction, considering that the country has spent massive sums on renewables to increase the share of electricity it generates from them.

As in everything else in life, so too with the environment: There is no such thing as a free lunch. Whether it’s nuclear, biofuels, natural gas, hydroelectric or, yes, wind and solar, there will always be serious environmental downsides to any form of energy when used on a massive scale. A single industrial-size wind turbine, for instance, typically requires about a ton of rare earth metals as well as three metric tons of copper, which is notoriously destructive and dirty to mine.

no “clean energy” solution will easily liberate us from our overwhelming and, for now, inescapable dependence on fossil fuels.

Nobody brings the point home better than Vaclav Smil, the Canadian polymath whose most recent book, “How the World Really Works,” should be required reading for policymakers and anyone else interested in a serious discussion about potential climate solutions.

“I’ve talked to so many experts and seen so much evidence,” he told me over Zoom, “I’m convinced the climate is changing, and addressing climate change has become a philanthropic priority of mine.”

Things could turn a corner once scientists finally figure out a technical solution to the energy storage problem. Or when governments and local actors get over their NIMBYism when it comes to permitting and building a large energy grid to move electricity from Germany’s windy north to its energy-hungry south. Or when thoughtful environmental activists finally come to grips with the necessity of nuclear energy

Till then, even as I’ve come to accept the danger we face, I think it’s worth extending the cancer metaphor a little further: Just as cancer treatments, when they work at all, can have terrible side effects, much the same can be said of climate treatments: The gap between an accurate diagnosis and effective treatment remains dismayingly wide

Only when countries like Vietnam and China turned to a different model, of largely bottom-up, market-driven development, did hundreds of millions of people get lifted out of destitution.

the most important transformation has come in agriculture, which uses about 70 percent of the world’s freshwater supply.

Farmers gradually adopted sprinkler and drip irrigation systems, rather than more wasteful flood irrigation, not to conserve water but because the technology provided higher crop yields and larger profit margins.

Water shortages “will spur a revolutionary, aggressive approach to getting rid of flood irrigation,” said Seth Siegel, the chief sustainability officer of the Israeli AgTech company N-Drip. “Most of this innovation will be driven by free-market capitalism, with important incentives from government and NGOs.

meaningful environmental progress has been made through market forces. In this century, America’s carbon dioxide emissions across fuel types have fallen to well below 5,000 million metric tons per year, from a peak of about 6,000 million in 2007, even as our inflation-adjusted G.D.P. has grown by over 50 percent and total population by about 17 percent.

1) Engagement with critics is vital. Insults and stridency are never good tools of persuasion, and trying to cow or censor climate skeptics into silence rarely works

the biggest single driver in emissions reductions from 2005 to 2017 was the switch from coal to natural gas for power generation, since gas produces roughly half the carbon dioxide as coal. This, in turn, was the result of a fracking revolution in the past decade, fiercely resisted by many environmental activists, that made the United States the world’s largest gas producer.

In the long run, we are likelier to make progress when we adopt partial solutions that work with the grain of human nature, not big ones that work against it

Renewables, particularly wind power, played a role. So did efficiency mandates.

The problem with our civilization isn’t overconfidence. It’s polarization, paralysis and a profound lack of trust in all institutions, including the scientific one

Devising effective climate policies begins with recognizing the reality of the social and political landscape in which all policy operates. Some thoughts on how we might do better:

They may not be directly related to climate change but can nonetheless have a positive impact on it. And they probably won’t come in the form of One Big Idea but in thousands of little ones whose cumulative impacts add up.

2) Separate facts from predictions and predictions from policy. Global warming is a fact. So is the human contribution to it. So are observed increases in temperature and sea levels. So are continued increases if we continue to do more of the same. But the rate of those increases is difficult to predict even with the most sophisticated computer modeling

3) Don’t allow climate to become a mainly left-of-center concern. One reason the topic of climate has become so anathema to many conservatives is that so many of the proposed solutions have the flavor, and often the price tag, of old-fashioned statism

4) Be honest about the nature of the challenge. Talk of an imminent climate catastrophe is probably misleading, at least in the way most people understand “imminent.”

A more accurate description of the challenge might be a “potentially imminent tipping point,” meaning the worst consequences of climate change can still be far off but our ability to reverse them is drawing near. Again, the metaphor of cancer — never safe to ignore and always better to deal with at Stage 2 than at Stage 4 — can be helpful.

5) Be humble about the nature of the solutions. The larger the political and financial investment in a “big fix” response to climate change on the scale of the Energiewende, the greater the loss in time, capital and (crucially) public trust when it doesn’t work as planned

6) Begin solving problems our great-grandchildren will face. Start with sea-level rise

We can also stop providing incentives for building in flood-prone areas by raising the price of federal flood insurance to reflect the increased risk more accurately.

7) Stop viewing economic growth as a problem. Industrialization may be the leading cause of climate change. But we cannot and will not reverse it through some form of deindustrialization, which would send the world into poverty and deprivation

8) Get serious about the environmental trade-offs that come with clean energy. You cannot support wind farms but hinder the transmission lines needed to bring their power to the markets where they are needed.

9) A problem for the future is, by its very nature, a moral one. A conservative movement that claims to care about what we owe the future has the twin responsibility of setting an example for its children and at the same time preparing for that future.