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But while those are huge numbers by any measure (world GDP is around $100 trillion), they aren’t big enough to motivate most leaders to justify mitigation, which will also cost a whole lot of money.

To put it in terms the authors use, the recently enacted Inflation Reduction Act will cost Americans roughly $80 per ton of carbon emissions avoided, and while each ton not pumped into the atmosphere would save the world $200 as a whole, it would only save Americans about $40 of that $200, making it feel to some altruistic but not self-evident in purely economic terms.

In their new paper, economists Adrien Bilal of Harvard and Diego Känzig of Northwestern take a fresh look at the data

They show that the social cost of carbon is likely far bigger — six times bigger — than previously estimated: losses of more than $1,000 per ton, or around 12 percent of world GDP per degree of warming.

— roughly equivalent to the economic drag on big economies if they were permanently at war.

Suddenly, that $80 Americans are spending on reducing one ton of carbon emissions is netting them $200 or so in U.S. economic activity.

Bilal and Känzig argue that it’s very much worth it for countries of means to spend the money now to avoid much greater costs down the line

the potential losses are so vast it makes sense for these countries to go ahead and act on their own to avoid climate change losses, even if other nations do nothing.

What’s different about your methodology and how did it lead you to the numbers you've come up with?

Adrien Bilal: So virtually all of the previous work that's been done on the subject has relied on comparisons of different countries that heat up or cool down at different points in time. The U.K. gets a little hotter in one year, and then Germany stays cool. And then you look at how GDP in the U.K. evolves following that change in temperature.

that generally gives you numbers in the vicinity of $150 per ton of carbon emitted and a 2 percent decline in GDP per degree Celsius in warming

we think that is quite different from what climate change is actually doing to the world. It's not only that the U.K. is going to heat up a little more than Germany, but the whole world is heating up because of climate change. And, in particular, oceans are also heating up. And when the whole planet warms, that has potentially really different implications for the climate system, increased frequency of extreme weather events that then have big local impacts. 

that's actually what geoscientists have been telling us for a long time, but it simply hadn't percolated into economics. And so we took that perspective very seriously and thought, "Well, what happens when we basically compare years where the world is very hot to years where the world is cooler?" And that gives you a much larger effect of climate change on the economy.

Those are revolutionary aspirations in that they reject not a policy consensus, but social and governing compacts that date to the Founding. (Or at least the end of the Civil War.)

Most revolutions are borne of dissatisfaction.

The Trumpian revolution, on the other hand, seems to be the product of decadent boredom commingled with casual nihilism.

Circumstances for our revolutionaries have never been better. They are so flush that they parade on their boats. And fly upside-down flags outside of their million-dollar suburban homes. And put stickers depicting a hogtied president on their $75,000 pickup trucks. All while posting angry memes to Facebook on their $1,000 iPhones.

Unlike normal revolutionaries, the Trumpist revolutionaries risk nothing. If their gambit succeeds, then they overturn the Constitutional order. And if it fails? They go back to their boats, and trucks, and good-paying jobs, and iPhones.

What’s more, this revolution has discovered that it gets as many bites at the apple as it likes. All defeats and setback are temporary. The movement lives to fight again. They can lose a dozen times—they only have to win once more.

Trumpist revolutionaries get to tell themselves that they are part of a historic, final battle—but also that if they lose, they get to keep their normal, pampered lives. And four years from now they can try again.

In sum: While the revolutionaries get to have their glamorous Götterdämmerung, over and over, the forces of the status quo have to defend against wave after wave of challenges. And it doesn’t matter how many authoritarian attempts are beaten back. There’s always another one looming.That is why you’re exhausted.

let’s be honest about human nature: Breaking things is fun. Especially when you don’t experience any consequences. But running around putting out fires, and cleaning up broken glass, and asking people to stop breaking things? That is not fun. It is enervating.

So while the revolutionary feels like a hero, you feel like a scold.

To paraphrase Mr. Cobb, once an idea has taken hold in society, it’s almost impossible to eradicate.

the Trumpist revolution’s weakness is that it has no ideas. It has goals, but these are motivated by nothing more than will-to-power. There is no logic—not even a faulty logic—behind them.7

How do we fight the exhaustion?First, we try to have some fun while we are scolding the twits and defending the imperfect status quo.Second, we remain fearless about the fight and clear eyed about reality.

Third, we organize and build communities to rally normal people to the cause of democracy.

This is exactly how Democrats should have behaved after the debate between Trump and Joe Biden. In the weeks leading up to their convention next month, this is precisely what they should be doing now

That willingness is not reassuring. For example, it is not far-fetched to imagine insurers wanting to get their hands on this type of medical information in order to hike premiums. Data brokers of all kinds will be similarly keen to obtain people’s real-time health-chat records. Altman made a point to say that this theoretical product would not trick people into sharing information.

. Neither Altman nor Huffington had an answer to my most basic question—What would the product actually look like? Would it be a smartwatch app, a chatbot? A Siri-like audio assistant?—but Huffington suggested that Thrive’s AI platform would be “available through every possible mode,” that “it could be through your workplace, like Microsoft Teams or Slack.

This led me to propose a hypothetical scenario in which a company collects this information and stores it inappropriately or uses it against employees. What safeguards might the company apply then? Altman’s rebuttal was philosophical. “Maybe society will decide there’s some version of AI privilege,” he said. “When you talk to a doctor or a lawyer, there’s medical privileges, legal privileges. There’s no current concept of that when you talk to an AI, but maybe there should be.”

So much seems to come down to: How much do you want to believe in a future mediated by intelligent machines that act like humans? And: Do you trust these people?

A fundamental question has loomed over the world of AI since the concept cohered in the 1950s: How do you talk about a technology whose most consequential effects are always just on the horizon, never in the present? Whatever is built today is judged partially on its own merits, but also—perhaps even more important—on what it might presage about what is coming next.

the models “just want to learn”—a quote attributed to the OpenAI co-founder Ilya Sutskever that means, essentially, that if you throw enough money, computing power, and raw data into these networks, the models will become capable of making ever more impressive inferences. True believers argue that this is a path toward creating actual intelligence (many others strongly disagree). In this framework, the AI people become something like evangelists for a technology rooted in faith: Judge us not by what you see, but by what we imagine.

I found it outlandish to invoke America’s expensive, inequitable, and inarguably broken health-care infrastructure when hyping a for-profit product that is so nonexistent that its founders could not tell me whether it would be an app or not.

Thrive AI Health is profoundly emblematic of this AI moment precisely because it is nothing, yet it demands that we entertain it as something profound.

you don’t have to get apocalyptic to see the way that AI’s potential is always muddying people’s ability to evaluate its present. For the past two years, shortcomings in generative-AI products—hallucinations; slow, wonky interfaces; stilted prose; images that showed too many teeth or couldn’t render fingers; chatbots going rogue—have been dismissed by AI companies as kinks that will eventually be worked out

Faith is not a bad thing. We need faith as a powerful motivating force for progress and a way to expand our vision of what is possible. But faith, in the wrong context, is dangerous, especially when it is blind. An industry powered by blind faith seems particularly troubling.

The greatest trick of a faith-based industry is that it effortlessly and constantly moves the goal posts, resisting evaluation and sidestepping criticism. The promise of something glorious, just out of reach, continues to string unwitting people along. All while half-baked visions promise salvation that may never come.

A lot of the news, however, is bad.

The bad news includes examples of people who reacted to Saturday’s events by glorifying violence, or by mocking its victims

The abject tactical failures of the Secret Service pose structural questions that urgently need to be answered.

The first conspiracies came from Trump’s detractors. As soon as the first pictures of his injury emerged, some influential Democratic activists and advisors suggested that this was a false flag operation, designed to strengthen his appeal.

Biden has, for example, repeatedly claimed that he decided to enter the 2020 presidential race after hearing Trump referring to the neo-Nazis and white supremacists who assembled for a deadly rally in Charlottesville in 2017 as “very fine people.” But while Trump was characteristically meandering and irresponsible in his remarks after that rally, he explicitly stated that “I'm not talking about the neo-Nazis and the white nationalists, because they should be condemned totally.”

Parts of the left have justified some forms of violence in the last years. Movements like Antifa explicitly glorify political violence, reserving for themselves both the right to take action against anyone they consider fascist, and the right to determine who should be included in that category

All of this is shameful. It must be called out and condemned without hedging or special pleading. But it also shouldn’t be inflated to imply that the Democratic establishment or the mainstream media has in general started to glorify violence.

Conversely, there is no doubt that parts of the Republican Party and the conservative movement have glorified political violence in the last years.

All of this is shameful, all the more so for coming from the most senior officials within the Republican Party. All of this must be called out and condemned without hedging or special pleading, something that the conservative media ecosystem have notably failed to do.

no excuse for overstating the extent to which the other side embraces political violence. And that is something that the most senior Democrats, from Joe Biden on down, have consistently done.

But the extent of conspiracism was much worse on the right.

he question of the day has come to be whether it is appropriate to portray Trump as an existential threat to democracy.

If it was appropriate to resist Hitler by violent means, and Trump is his modern-day equivalent, then (so goes the tacit implication of the New Republic’s cover), why shouldn’t it be legitimate to resist Trump by violent means?

Depressingly often, in American politics, both sides are badly wrong. In this particular case, it seems to me that both sides are mostly right.

It is perfectly appropriate—even in the aftermath of Saturday’s unconscionable attack on Trump—to warn about what his presidency may mean for America’s democracy. But there is never an excuse—even and especially when the stakes are truly high—for fear-mongering that distorts the exact nature of that threat.

if moments of tragedy and upheaval reveal the true state of a country, the first draft of America’s report card puts it in danger of failing. Most Americans continue to abhor violence. Our mutual hatred still knows limits. And yet the mix of institutional failure, conspiracist thinking, and partisan fear-mongering is very potent. The risk that it may yet set in motion dynamics which overwhelm the decent instincts of most ordinary Americans remains very real

As a history teacher in a large, diverse suburban high school, I have spent more and more time in recent years trying (with mixed results) to "win back" white boys falling down dark internet rabbit holes of racist, Islamophobic and antisemitic conspiracy theories, misogyny, etc. Most of these boys of course do not end up as shooters (when I suspect that might be the case I go right to administration), but they do end up holding horrifying views that bode ill for the future of our polity.

What defies the typical "shooter" stereotype among most in this larger universe of white boys getting radicalized online is that most, though not all, of the latter (in my experience) are among my most intellectually curious, thoughtful and sensitive students. But, to use Professor Henderson's phraseology, they are not "alphas." Some have friends, even girlfriends, but none of them are part of the "popular" crowd. They are bright, but not "good at school" like the students who end up in your Ivy League courses. At 15 or 16 or 17, they feel (correctly) that they have something to offer the world, but feel they have been locked out of all the paths to success in their narrow world: They'll never be star athletes, or valedictorian, or one of the popular kids.

They feel like the message we as a society (schools, YA literature, "mainstream media") are sending them is that "You are privileged; you are the oppressor, you are the cause and beneficiary of all the world's injustices." The complexities of graduate level political theory are generally lost on a teenage boy who feels like the whole world is against him. The irony is these are the boys who actually care about issues of justice. The quarterback and the debate champion don't care if you throw their privilege in their face. They know their worth and are too busy to care.

I am sharing this comment not so much to identify what motivates shooters - I have no expertise in criminal pathology - but more in terms of the educational vacuum creating a generation of disaffected young men open to believe conspiracy theories because we are no longer offering them an alternative narrative of Americanism that speak to them as powerfully as those of the conspiracy theorists, the White Nationalists, and the miraculously save man who will be their retribution.

this latest effort provoked a response that was swift and scathing and revealed something new: the existence of a tightknit group of scholars who are clamoring for more empathetic political analyses of rural Americans.

“We contribute to the further denigration of expertise when we say, ‘This is what the experts say about these rubes and bumpkins,’” said Mr. Jacobs, a co-author of “The Rural Voter.” “Who’s going to trust the experts when that’s what the experts have to say about you?”

There is an obvious reason for academics’ neglect of the political urban-rural divide until recently: It barely existed.

It’s only since the late 1990s that there has been a marked gap between rural and urban voting patterns in presidential elections, and it has widened ever since. In 2016, Mr. Trump won 59 percent of rural voters. Four years later, that climbed to 65 percent, according to Pew. And in the 2022 midterms, Republicans won 69 percent of the rural vote.

Even if that shift does hint that “rural” may now be its own kind of identity, it’s a cohort that’s hard to define.

The Census Bureau classifies any community as rural if it isn’t within an urban area, meaning it is not part of a densely settled area with 5,000 or more people or 2,000 or more housing units. (In the 2020 census, 20 percent of Americans were classified as rural.)

“I get frustrated especially when people talk about rural America as white America. In some states, it’s Latino America. In the Deep South, it’s Black America.”

Beyond these basic definitional problems, rural communities can be wildly different socially. “When you aggregate to the national level, you lose so much,”

Traditionally, political scientists argued that measuring the effects of place was just a proxy for looking at other parts of identity, like race or education. And because many did not come from rural areas, growing up rural didn’t tend to strike academics as a salient part of political identity.

Maybe because so few people fashioned themselves as “rural political experts” until recently, the few high-profile explanations for the rise of rural Republicanism were widely embraced by the chattering classes.

Thomas Frank in his best-selling 2004 book, “What’s the Matter With Kansas?” Mr. Frank, a historian, argued that the Republican focus on social issues, like abortion and guns, persuaded rural voters to put aside their economic interests and vote on cultural values rather than for candidates who supported unions and corporate regulation.

a handful of academics were so frustrated with the book that it inspired them to pursue their own research.

What rankled the experts who had read “White Rural Rage” was what they considered slapdash analysis. The authors build some arguments on polls with sample sizes as small as 167 rural people. The book is filled with critiques of rural Americans — their resistance to pluralism, their willingness to embrace conspiracies — that apply to many groups and that some scholars reject because they are not based on the long-term observation they say is needed to truly understand the political motives of any community.

Their reaction was hostility toward the very idea of government, so they supported politicians who promised to keep it out of their lives; Ms. Cramer called this “the politics of resentment.”

Ms. Cramer’s 2016 book, “The Politics of Resentment,” quickly became an anchor in the growing field of rural political studies. At least half a dozen academics credit her with foundational thinking for their research.

“A lot of the focus has been on ‘What’s wrong with those people?’” she said. “But most people studying what’s going on with rural political behavior are people with empathy for people who live in rural places. They aren’t discounting them as ignorant or uninformed. There’s more of an attempt to understand the way they’re seeing the world.”

When Mr. Jacobs decided this year to convene a group of 15 scholars for a conference called Rethinking Rural, he was struck by the flurry of excitement that greeted the invitations. “It was like the first time they’d been asked to the dance,”

Ms. Cramer came to a different understanding from Mr. Frank’s of why people voted the way they did: Rural Americans resented city dwellers. They believed that national and state governments had enriched urban areas at the expense of rural ones, taking note of all the road-building in Madison, for example, when they drove to sports games.

Mr. Jacobs, with the political scientist Dan Shea, conducted surveys of 10,000 rural voters, from Gambell, Alaska, to Lubec, Maine. The pair were struck by a commonality: Rural residents tend to focus less on their own economic circumstances and more on their community’s prosperity.

Even individuals who are thriving are attuned to whether their community as a whole is being left behind by economic changes like automation or the decline of coal.

That sense of “shared fate,” as the scholars put it, arises in part because rich and poor tend to cross paths often,

“If you go down my street in Vassalboro, the nicest house on the street is right across from the least nice house on the street,” Mr. Jacobs said. “Their kids go to the same school because there’s only one school.”

Such interconnectedness means that pollsters sometimes miss how rural voters are really feeling, he added. “It’s not enough to simply ask: Are you doing better than you were last year?

As millions left rural areas seeking economic opportunity, an appreciation formed for the businesspeople who stayed and tried to create jobs. That led to an outsize influence by local business leaders in the political realm, driving support for anti-union laws and tax policies generous to businesses.

Broadly, rural Americans see free trade and the rise of new technologies as hurting their communities while helping cities prosper

So the resentment they felt toward urbanites didn’t come out of nowhere.

“Rage and resentment are not interchangeable terms,” he wrote in Politico. “Rage implies irrationality, anger that is unjustified and out of proportion. You can’t talk to someone who is enraged. Resentment is rational, a reaction based on some sort of negative experience.”

And while resentment, like rage, doesn’t easily dissolve, he suggests that trying to understand where it comes from could start to build a bridge over that ever-widening urban-rural divide.

Democrats and independents who lean to the Democratic Party are about three times more likely than Republicans and Republican-leaning independents to say they have participated in at least one of these activities to address climate change in the past year (32% vs. 10%).

30% of adults ages 18 to 29 say they have participated in at least one of four activities in the past year, compared with 17% of those ages 65 and older.

Those who say they personally care a great deal about climate change are much more likely than those who say they care some to have participated in at least one of four climate-related activities in the last year (36% vs. 14%).

A relatively small share of the public (28%) believes that climate activism, such as protests and rallies, makes people more likely to support action on climate change.

About half of Americans (49%) say climate activism does not really affect people’s levels of support, and 21% believe it has the opposite of its intended effect and makes people less likely to support action on climate change.

Just 11% of Americans say climate activism is extremely or very effective in getting elected officials to act on climate change; 33% say it is somewhat effective

A narrow majority of Americans (54%) say that climate activism is not too or not at all effective in getting elected official to act on climate change.

However, a majority of Democrats believe climate activism is at least somewhat effective at motivating action from elected officials. By contrast, 69% of Republicans believe it is not too or not at all effective.

Overall, 53% of U.S. adults say they have talked about the need for action on global climate change in the past few weeks. By comparison, 46% say they have not talked about the need to address climate change recently.

Democrats (72%) are far more likely than Republicans (35%) to say they have talked about the need for action on climate change within the last week.