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The global rate of consumption growth, before the pandemic, was 3% a year. Population growth is 1%. Some people assume this means that the rise in population bears one-third of the responsibility for increased consumption

But population growth is overwhelmingly concentrated among the world’s poorest people, who have scarcely any A or T to multiply their P. The extra resource use and greenhouse gas emissions caused by a rising human population are a tiny fraction of the impact of consumption growth.

Yet it is widely used as a blanket explanation of environmental breakdown.

Panic about population growth enables the people most responsible for the impacts of rising consumption (the affluent) to blame those who are least responsible.

At this year’s World Economic Forum in Davos, the primatologist Dame Jane Goodall, who is a patron of the charity Population Matters, told the assembled pollutocrats, some of whom have ecological footprints thousands of times greater than the global average: “All these things we talk about wouldn’t be a problem if there was the size of population that there was 500 years ago.”

If we had the global population of 500 years ago (around 500 million), and if it were composed of average UK plane passengers, our environmental impact would probably be greater than that of the 7.8 billion alive today.

he proposed no mechanism by which her dream might come true. This could be the attraction. The very impotence of her call is reassuring to those who don’t want change. If the answer to environmental crisis is to wish other people away, we might as well give up and carry on consuming.

Since the clergymen Joseph Townsend and Thomas Malthus wrote their tracts in the 18th century, poverty and hunger have been blamed not on starvation wages, war, misrule and wealth extraction by the rich, but on the reproduction rates of the poor.

Winston Churchill blamed the Bengal famine of 1943, that he helped to cause through the mass export of India’s rice, on the Indians “breeding like rabbits”. In 2013 Sir David Attenborough, also a patron of Population Matters, wrongly blamed famines in Ethiopia on “too many people for too little land”, and suggested that sending food aid was counter-productive.

Malthusianism slides easily into racism.

Most of the world’s population growth is happening in the poorest countries, where most people are black or brown. The colonial powers justified their atrocities by fomenting a moral panic about “barbaric”, “degenerate” people “outbreeding” the “superior races”

These claims have been revived today by the far right, who promote conspiracy theories about “white replacement” and “white genocide”. When affluent white people wrongly transfer the blame for their environmental impacts on to the birthrate of much poorer brown and black people, their finger-pointing reinforces these narratives. It is inherently racist.

The far right now uses the population argument to contest immigration into the US and the UK

how do we distinguish proportionate concerns about these harms from deflection and racism? Well, we know that the strongest determinant of falling birth rates is female emancipation and education. The major obstacle to female empowerment is extreme poverty. Its effect is felt disproportionately by women.

So a good way of deciding whether someone’s population concerns are genuine is to look at their record of campaigning against structural poverty.

Have they contested the impossible debts poor nations are required to pay? Have they argued against corporate tax avoidance, or extractive industries that drain wealth from poorer countries, leaving almost nothing behind

Or have they simply sat and watched as people remain locked in poverty, then complained about their fertility?

Before long, this reproductive panic will disappear. Nations will soon be fighting over immigrants: not to exclude them, but to attract them, as the demographic transition leaves their ageing populations with a shrinking tax base and a dearth of key workers.

the signs of a crisis that looks like the Great Depression are impossible to hide. In Anaheim, Calif., home to Disneyland, cars formed half-mile-long lines in two different directions, waiting to pick up free food. In San Antonio, 10,000 cars waited for hours to receive food from a food bank. Even still, Republicans balk at expanding access to food stamps while hunger is on the rise. Nearly one in five children 12 and younger don’t have enough to eat.

That “way of life” may also begin to look like mass homelessness. Through the first five days of April, 31 percent of tenants nationwide had failed to pay their rent

Forty-three million households rent in the U.S., but there is no public rental assistance for residents who lose the ability to afford their rent.

Many elected officials in the Republican Party have access to Covid-19 testing, quality health care and the ultimate cushion of wealth to protect them. Yet they suggest others take the “risk” of returning to work as an act of patriotism

While the recent stimulus bills doled out trillions of dollars to corporate America and the “financial sector,” the smallest allocations have provided cash, food, rent or health care for citizens. The gaps in the thin membrane of a safety net for ordinary Americans have made it impossible to do anything other than return to work.

This isn’t just malfeasance or incompetence. Part of the “American way of life” for at least some of these elected officials is keeping workers just poor enough to ensure that the “essential” work force stays shows up each day

Discipline in the U.S. has always included low and inconsistent unemployment and welfare combined with stark deprivation. Each has resulted in a hyper-productive work force with few benefits in comparison to America’s peer countries.

In the case of the meatpacking industry, there is not even a veil of choice, as those jobs are inexplicably labeled essential, as if life cannot go on without meat consumption

The largely immigrant and black meatpacking work force has been treated barely better than the carcasses they process. They are completely expendable. Thousands have tested positive, but the plants chug along, while employers offer the bare minimum by way of safety protections, according to workers. If there were any question about the conditions endured in meatpacking plants, consider that 145 meat inspectors have been diagnosed with Covid-19 and three have died.

In place of decent wages, hazard pay, robust distribution of personal protective equipment and the simplest guarantees of health and safety, these lawmakers use the threat of starvation and homelessness to keep the work force intact.

if the social distancing and closures were ever going to be successful, it would have meant providing all workers with the means to live in comfort at home while they waited out the disease. Instead, they have been offered the choice of hunger and homelessness or death and disease at work.

The governor of Iowa, Kim Reynolds, made this painfully clear when she announced that not only was Iowa reopening, but that furloughed workers in private or public employment who refused to work out of fear of being infected would lose current unemployment benefits. She described these workers’ choices as a “voluntary quit.”

This is exacerbated by the reluctance of the Trump administration to bail out state governments. That the U.S. government would funnel trillions to corporate America but balk at sending money to state governments also appears to be part of “the American way of life” that resembles the financial sector bailout in 2008.

These are also the bitter fruits of decades of public policies that have denigrated the need for a social safety net while gambling on growth to keep the heads of U.S. workers above water just enough to ward off any real complaints or protests.

During the long and uneven recovery from the Great Recession, the warped distribution of wealth led to protests and labor organizing. The crisis unfolding today is already deeper and much more catastrophic to a wider swath of workers than anything since the 1930s. The status quo is untenable.

The single-minded mission of a public health expert is to stop the spread of disease, which is of course an important priority. But if he is not trained in history or economics, he may not realize how relevant these bodies of knowledge are to the general health of society, and he may not appreciate the full costs of drastic public health measures.

Never in history has an economic catastrophe descended so swiftly.  “The speed and magnitude of the labor market’s decline is unprecedented,”

Dr. Fauci dismisses the loss of 10 million jobs as merely “inconvenient”, and says “I just don’t understand” why all 50 states are not locking down their citizens -- perhaps because he does not understand how terrible the last depression was.

Extrapolating from Brenner’s estimates, political scientist Toby Rogers calculates that even a 5 percent increase in unemployment over 5 years (the Great Depression lasted more than a decade) would kill nearly 300,000 Americans

Historically, economic prosperity tends to make human beings tolerant and peace-loving, whereas sharp economic reverses impel us to grab resources from others, persecute scapegoats, surrender to despots, and wage war.

The Great Depression gave rise to tyranny, aggression, and mass murder throughout the world

the actual casualties of the Second World War were still greater: 70 to 85 million dead, two-thirds of them civilians, most if not all of them ultimately the result of the Great Depression. Without that trigger, there would have probably been no global war and no Holocaust

even mild recessions can kill. Drawing on American health statistics from 1940 to 1973, he calculated that a one percent rise in unemployment over six years produced 36,887 excess deaths, mainly from cardiovascular disease, suicide, homicide, and cirrhosi

we tend to overlook the darker side of the New Deal. To take just one example which isn’t much taught in our classes, the US government deported as many as 1.8 million Mexican-Americans to Mexico, though the majority were US citizens. The exact numbers are debated, but in any case they were far greater than the Japanese-Americans interned during the Second World War (120,000) or the American Indians removed from their land by Andrew Jackson (80,000). Begun under the Hoover administration, the deportations continued under Roosevelt, with the aim of saving jobs for Americans (as long as they weren’t Mexican-Americans). 

If unemployment reaches 20 percent, as some economists are predicting, the result would be almost a million deaths in the United States alone, far more than any plausible estimate of COVID casualties.

If you question whether the measures taken against coronavirus today will kill democracy, the answer is that they are already killing democracy.

In Africa, government security forces have been brutalizing and in some cases killing citizens to enforce lockdowns. Throughout the Third World there are hundreds of millions living on a subsistence level, and for them lockdowns can mean starvation:

Lockdowns now look increasingly like an epidemiological Maginot Line, a flatfooted static defense that rules out more aggressive and innovative tactics

Russia hopes to seize on the warming temperatures and longer growing seasons brought by climate change to refashion itself as one of the planet’s largest producers of food.

But for a few nations, climate change will present an unparalleled opportunity, as the planet’s coldest regions become more temperate.

And no country may be better positioned to capitalize on climate change than Russia. Russia has the largest land mass by far of any northern nation.

There is an optimum climate for human productivity — average annual temperatures between 52 and 59 degrees Fahrenheit, according to a recent study in the Proceedings of the National Academy of Sciences — and much of the planet’s far north is headed straight toward it.

And as the climate warms, Canada will move into the ecological sweet spot for civilization, benefiting from new Arctic transportation routes as well as an expanded capacity for farming.

This is why a group of Canadian business executives and academics have called on their government to turn the country’s immigration system into a magnet for the planet’s most talented people, hoping to nearly triple Canada’s population by 2100.

The race for prosperity in a climate-changed world is about achieving domestic self-reliance and also expanding geopolitical influence.

but Tchebakova’s research suggests that if humans continue to emit carbon dioxide at high rates, roughly half of Siberia — more than two million square miles — could become available for farming by 2080, and its capacity to support potential climate migrants could jump ninefold in some places as a result.

The wait may not be especially long. This season, crops of winter wheat and canola seed outside Tchebakova’s own city of Krasnoyarsk in southern Siberia produced twice the yields as the year before.

As Vladimir Putin himself once glibly put it, a couple of degrees of warming might not be so bad: “We could spend less on fur coats, and the grain harvest would go up.”

But agriculture offers the key to one of the greatest resources of the new climate era — food — and in recent years Russia has already shown a new understanding of how to leverage its increasingly strong hand in agricultural exports

Russia’s agricultural dominance, says Rod Schoonover, the former director of environment and natural resources at the National Intelligence Council and a former senior State Department analyst under the Obama and Trump administrations, is “an emergent national security issue” that is “underappreciated as a geopolitical threat.”

In 2010, in what was a rare and early official assessment of climate risk, the U.S. Department of Defense’s Quadrennial Defense Review warned that climate change “could have significant geopolitical impacts,” contributing to poverty, starvation, drought and the spread of disease

The current plan invites any Russians willing to relocate themselves in Siberia and the Far East, including in the Birobidzhan area of the Jewish Autonomous Region, to buy properties at 2 percent interest.

To help fill the gaps, Taliban officials are reaching into Pakistan.

Now, the Taliban are privately recruiting them to return and work in the new government.

It is unclear how many former fighters have returned from Pakistan, but there have already been several high-profile appointments, including Mr. Ghayoor.

The new hires are walking into a mounting catastrophe. Hunger is rampant. Many teachers and other public sector employees have not been paid in months. The millions of dollars in aid that helped prop up the previous government have vanished, billions in state assets are frozen and economic sanctions have led to a near collapse of the country’s banking system.

“Running insurgency and state are two different things,” said Noor Khan, 40, an accountant who fled Kabul for Islamabad in early September, among hundreds of other Afghan professionals hoping for asylum in Europe.

A similar mass exodus of Afghanistan’s professional class occurred in the 1980s and 1990s, when the Soviets withdrew and the Taliban wrested control from the warlords who filled the leadership vacuum.

Then as now, the Taliban preferred filling the government ranks with jihadis and loyalists. But this time, some civil servants have also stopped showing up for work, several of them said in interviews, either because they are not being paid, or because they do not want to taint their pending asylum cases in the United States or Europe by working for the Taliban.

Sirajuddin Haqqani, head of the militant Haqqani network and labeled a terrorist by the F.B.I., was appointed acting minister of the interior, overseeing police, intelligence and other security forces.

“They have no experience to run the departments,” said Basir Jan, a company employee. “They sit in the offices with guns and abuse the employees in the departments by calling them ‘corrupt’ and ‘facilitators of the invaders.’”

Taliban leaders blame the United States for the collapsing economy. But some analysts say that even if the United States unfreezes Afghanistan’s state assets and lifts sanctions, the Finance Ministry does not have the technical know-how to revive the country’s broken banking system.

“Their response to the catastrophic economic situation is ‘It’s not our fault, the internationals are holding the money back.’ But the reality is that they don’t have the capacity for this kind of day-to-day technical operation,”

Foreigners intentionally evacuated Afghans, most importantly, the educated and professional ones, to weaken the Islamic Emirates and undermine our administration,” Mr. Hashimi said.

“We are in touch with some Afghans in different parts of the world and are encouraging them to return to Afghanistan because we desperately need their help and expertise to help their people and government,”

Mr. Ghayoor, the baker turned police chief, said that Kabul changed markedly in the two decades that he was away. As part of his duties, he tries to instill order at a busy produce market in Kabul as vendors tout fruit and vegetables, and taxi drivers call out stops, looking for fares.

Mr. Ghayoor said in December that neither he nor any other member of the Kabul police force had been paid in months. Nevertheless, he said he decided to sell his bakery in Quetta, a city in southwestern Pakistan, and move his extended family, including nine children, to Kabul.

According to Smith, his head was placed on two stones and a warrior prepared to smash his head and kill him. But before the warrior could strike, Pocahontas rushed to Smith’s side and placed her head on his, preventing the attack. Chief Powhatan then bartered with Smith, referred to him as his son and sent him on his way.

It’s thought that Pocahontas married an Indian named Kocoum in 1610. Afterwards, she avoided the English until 1613 when she was lured onto the English ship of Captain Samuel Argall and kidnapped during the First Anglo-Powhatan War.Argall informed Chief Powhatan that he wouldn’t return Pocahontas unless he released English prisoners, returned stolen weapons and sent the colonists food. Much to Pocahontas’ dismay, her father only sent half the ransom and left her imprisoned.

Pocahontas became known by the colonists as an important Powhatan emissary. She occasionally brought the hungry settlers food and helped successfully negotiate the release of Powhatan prisoners in 1608. But relations between the colonists and the Indians remained strained.By 1609, drought, starvation and disease had ravaged the colonists and they became increasingly dependent on the Powhatan to survive. Desperate and dying, they threatened to burn Powhatan towns for food, so Chief Powhatan suggested a barter with Captain Smith.

Soon after, Smith was injured and returned to England; however, Pocahontas and her father were told he died.

Smith’s account of Pocahontas’ lifesaving efforts is hotly debated, partly because he wrote different versions of this initial meeting with Chief Powhatan. Many historians believe Smith was never in peril and the placement of his head on the stones was ceremonial.

The couple decided to marry, likely for both love and political purposes – although the decision wasn’t an easy one for the staunchly Christian Rolfe until Pocahontas converted.

In 1616, Sir Thomas Dale sailed to England to rally financial support for the Virginia Company, the company owned by wealthy Londoners that had financed the Jamestown colony.

Much to her surprise, Pocahontas encountered Captain Smith (whom she thought was dead) in London. Although she was overcome with emotion upon seeing him alive and called him “father,” she also reportedly chastised him for his treatment of Chief Powhatan and her people.

In March 1617, Pocahontas, her husband and son set sail for Virginia. But they had hardly made progress when she became gravely ill and was taken ashore at Gravesend, England.

Pocahontas was buried at St. George’s church in Gravesend on March 21, 1617. Rolfe returned to Virginia, but her son Thomas remained with relatives in England. He returned almost two decades later at age 20 to claim inheritances from his

father and grandfather and became a successful gentleman tobacco farmer.

colonists declined rapidly.Much of Pocahontas’ life has been romanticized and sensationalized in movies and books. But written accounts and Native American oral history show she lived a brief yet significant life.

“It was a pretty drastic change; it happened overnight,” McCormick says. “The ancient witnesses really were onto something. They were not being hysterical or imagining the end of the world.”

The effects of the 536 eruption were compounded by eruptions in 540 and 547, and it took a long time for the Northern Hemisphere to recover. “The Late Antique Little Ice Age that began in the spring of 536 lasted in western Europe until about 660, and it lasted until about 680 in Central Asia,” McCormick says.

This period of cold and starvation caused economic stagnation in Europe that intensified in 541 when the first bubonic plague broke out. The plague killed between one-third and one-half of the population in the Byzantine Empire, or Eastern Roman Empire.

That playbook is how Washington typically tries to punish objectionable regimes. But the result has been catastrophic for civilians.

Isolation was fast and easy to do: It cost no money or political capital and satisfied the imperative of expressing disapproval.

Funding for emergency aid delivered by the United Nations and humanitarian organizations has grown, with Washington providing the largest share, nearly $474 million in 2021. The U.S. government also has gradually broadened humanitarian carve-outs from its sanctions and has taken the lead in getting the Security Council to issue exemptions from U.N. sanctions, making it easier for those delivering aid to carry out their work without legal risk.

But these steps are insufficient.

The United States should draw a distinction between the Taliban as former insurgents and the state they now control.

It will help curb growing migration from the country and rising illicit narcotics production by Afghans desperate for income. It could also produce at least limited opportunity for getting the Taliban to cooperate with the United States to suppress terrorist threats from the Islamic State affiliate in Afghanistan and other groups.

And appearing to turn a blind eye to the Taliban’s past and current human rights violations is deeply unappealing.

But I’ve seen over the past two decades how Western powers have consistently overestimated their ability to get Afghan authorities — whoever they are — to acquiesce to their demands. Governments that were utterly dependent on U.S. security and financial support brushed off pressure to adopt Washington’s preferred peacemaking, war-fighting and anti-corruption strategies.

The Taliban are never going to have a policy on women’s rights that accords with Western values. They show no signs of embracing even limited forms of democratic governance.

But the alternative is worse, foremost for the Afghans who have no choice but to live under Taliban rule and who need livelihoods.

in fact, that the birds eventually went extinct; the last known passenger pigeon died in 1914.

The Compleat Housewife would likely have been found in any well-to-do household in the late colonial era, when the mid-day “dinner” could consist of three courses, with multiple dishes per course.

Though regional, seasonal and other differences make it difficult to generalize about a typical colonial diet, the following seven foods and beverages are a small sample of what might have been found on many colonial tables.

Pickles

umble cookies—sometimes spelled “jumbal”—can be considered the ancestors of modern sugar cookies, though far less sweet. Recipes appeared in cookbooks in England as early as 1585, and the cookies became a popular staple in the colonies. “You will find recipes for jumble cookies by the thousands,” says Nahon; even Martha Washington was said to have her own.

Black pepper’s antibacterial properties make it a good preservative, and this imported spice took center stage in the pepper cake, a gingerbread-like loaf flavored with black pepper and molasses and studded with candied fruits.

Colonial Americans drank a lot of alcohol, and this popular drink-dessert dating to the 18th century combined sweetened whipped cream with wine or hard cider. The resulting frothy concoction was often served on special occasions. Amelia Simmons’ American Cookery, which in 1796 became the first cookbook by an American to be published in the United States, included a recipe for syllabub that called for the cook to flavor cider with sugar, grate nutmeg into it—and milk a cow directly into the liquor. 

Over the past four decades, governments have slashed budgets and privatized basic services. This has two important consequences for public health

First, people are unlikely to trust institutions that do little for them.

second, public health is no longer viewed as a collective endeavor, based on the principle of social solidarity and mutual obligation. People are conditioned to believe they’re on their own and responsible only for themselves.

an important source of vaccine hesitancy is the erosion of the idea of a common good.

compared with white Americans, communities of color do experience the American health care system differently. But a closer look at the data reveals a more complicated picture.

Since the spring, when most American adults became eligible for Covid vaccines, the racial gap in vaccination rates between Black and white people has been halved. In September, a national survey found that vaccination rates among Black and white Americans were almost identical.

Other surveys have determined that a much more significant factor was college attendance: Those without a college degree were the most likely to go unvaccinated.

Education is a reliable predictor of socioeconomic status, and other studies have similarly found a link between income and vaccination.

It turns out that the real vaccination divide is class.

“People are thinking, ‘If the government isn’t going to do anything for us,’” said Elden, “‘then why should we participate in vaccines?’”

during the 1950s polio campaigns, for example, most people saw vaccination as a civic duty.

But as the public purse shrunk in the 1980s, politicians insisted that it’s no longer the government’s job to ensure people’s well-being; instead, Americans were to be responsible only for themselves and their own bodies

Entire industries, such as self-help and health foods, have sprung up on the principle that the key to good health lies in individuals making the right choices.

Without an idea of the common good, health is often discussed using the language of “choice.”

there are problems with reducing public health to a matter of choice. It gives the impression that individuals are wholly responsible for their own health.

This is despite growing evidence that health is deeply influenced by factors outside our control; public health experts now talk about the “social determinants of health,” the idea that personal health is never simply just a reflection of individual lifestyle choices, but also the class people are born into, the neighborhood they grew up in and the race they belong to.

food deserts and squalor are not easy problems to solve — certainly not by individuals or charities — and they require substantial government action.

Many medical schools teach “motivational interviewing,”

the deeper problem:

Being healthy is not cheap. Studies indicate that energy-dense foods with less nutritious value are more affordable, and low-cost diets are linked to obesity and insulin resistance.

Another problem with reducing well-being to personal choice is that this treats health as a commodity.

This isn’t surprising, since we shop for doctors and insurance plans the way we do all other goods and services

mothers devoted many hours to “researching” vaccines, soaking up parental advice books and quizzing doctors. In other words, they act like savvy consumers

When thinking as a consumer, people tend to downplay social obligations in favor of a narrow pursuit of self-interest. As one parent told Reich, “I’m not going to put my child at risk to save another child.”

Such risk-benefit assessments for vaccines are an essential part of parents’ consumer research.

Vaccine uptake is so high among wealthy people because Covid is one of the gravest threats they face. In some wealthy Manhattan neighborhoods, for example, vaccination rates run north of 90 percent.

For poorer and working-class people, though, the calculus is different: Covid-19 is only one of multiple grave threats.

When viewed in the context of the other threats they face, Covid no longer seems uniquely scary.

Most of the people we interviewed in the Bronx say they are skeptical of the institutions that claim to serve the poor but in fact have abandoned them.

he and his friends find reason to view the government’s sudden interest in their well-being with suspicion. “They are over here shoving money at us,” a woman told us, referring to a New York City offer to pay a $500 bonus to municipal workers to get vaccinated. “And I’m asking, why are you so eager, when you don’t give us money for anything else?”

These views reinforce the work of social scientists who find a link between a lack of trust and inequality. And without trust, there is no mutual obligation, no sense of a common good.

The experience of the 1960s suggests that when people feel supported through social programs, they’re more likely to trust institutions and believe they have a stake in society’s health.

While the reasons vary by country, the underlying causes are the same: a deep mistrust in local and international institutions, in a context in which governments worldwide have cut social services.

In one Syrian city, for example, the health care system now consists of one public hospital so underfunded that it is notorious for poor care, a few private hospitals offering high-quality care that are unaffordable to most of the population, and many unlicensed and unregulated private clinics — some even without medical doctors — known to offer misguided health advice. Under such conditions, conspiracy theories can flourish; many of the city’s residents believe Covid vaccines are a foreign plot.

In many developing nations, international aid organizations are stepping in to offer vaccines. These institutions are sometimes more equitable than governments, but they are often oriented to donor priorities, not community needs.

“We have starvation and women die in childbirth.” one tribal elder told us, “Why do they care so much about polio? What do they really want?”

In America, anti-vaccine movements are as old as vaccines themselves; efforts to immunize people against smallpox prompted bitter opposition in the turn of the last century. But after World War II, these attitudes disappeared. In the 1950s, demand for the polio vaccine often outstripped supply, and by the late 1970s, nearly every state had laws mandating vaccinations for school with hardly any public opposition.

What changed? This was the era of large, ambitious government programs like Medicare and Medicaid.

The anti-measles policy, for example, was an outgrowth of President Lyndon Johnson’s Great Society and War on Poverty initiatives.

Research shows that private systems not only tend to produce worse health outcomes than public ones, but privatization creates what public health experts call “segregated care,” which can undermine the feelings of social solidarity that are critical for successful vaccination drives

Only then do the ideas of social solidarity and mutual obligation begin to make sense.

The types of social programs that best promote this way of thinking are universal ones, like Social Security and universal health care.

If the world is going to beat the pandemic, countries need policies that promote a basic, but increasingly forgotten, idea: that our individual flourishing is bound up in collective well-being.

the lack of public commemoration may also have something to do with the fear of relativizing the Holocaust and even giving succor to antisemitism. It’s a reasonable concern

according to the most recent census, in 2021, nearly a third of German residents were first- or second-generation migrants, compared with about a fifth in 2011

As a more diverse generation enters Parliament and takes on positions in regional and national government, so do new perspectives.

In December 2022, Germany returned some of the Benin Bronzes, 20 pieces of artwork stolen from what is today Nigeria by British soldiers and sold to Germany.

This process of education is an utter necessity, not just for the chancellor. Germany’s history is unique and uniquely atrocious. But other countries have histories worth knowing, too

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.

But using them would mean cutting a deal with a brutal leader closely allied with President Vladimir V. Putin of Russia, underscoring the painful moral and political decisions that now confront Western leaders as they scramble to avert a global food crisis.

The Lithuania route appears to be the most promising for getting food quickly to areas like the Middle East and Africa that need it the most, even if it is also a long shot.

“This is a decision that politicians need to take not me,” Mr. Latakas, the Klaipeda port director, said. “It is up to them to decide what is most important.”

Western nations like the United States, as well as Ukraine, oppose lifting sanctions imposed on Russia over its invasion but have not ruled out a deal with Belarus.

The war has halted those shipments, leaving around 25 million tons of grain, according to U.N. estimates, from last year’s harvest stranded in silos and at risk of rotting if it is not moved soon. A further 50 million tons is expected to be harvested in coming months. The grain elevators in Ukraine that have not been damaged or destroyed by shelling are quickly filling up. Soon, there will be no room left to store the incoming harvest.

Ukraine’s foreign minister, said severe bottlenecks meant that the existing routes through Poland and Romania “can provide only limited alleviation of the food crisis” given the volumes that need to be moved.

Warning of an approaching “hurricane of hunger,” the head of the United Nations, António Guterres, has sought to negotiate a deal under which Ukrainian grain would be transported out of the country by ship or train, and in exchange Russia and Belarus would sell fertilizer products to the global market without the threat of sanctions.

That means that Western governments and Ukraine are left to try out a range of possible solutions fraught with problems. Test runs of trains carrying grain from Ukraine through Poland to Lithuania, for example, have taken three weeks because of different track gauges in neighboring countries, requiring cargos to be loaded and unloaded multiples times.

Turkey has proposed using its ships to transport grain from Odesa, which, in addition to getting Ukraine to demine the port, would require an agreement from Russia not to hinder vessels.

But faced with the considerable challenges of executing such a plan, the best option for getting large quantities of Ukrainian grain to hungry people is probably by rail through Belarus to Klaipeda and other Baltic ports in Latvia and Estonia.That “won’t solve everything, but it would significantly alleviate the situation,”

Ukraine is opposed to any easing of sanctions against Russia but, increasingly desperate to move grain trapped by the war, is more open to the idea of a temporary easing of sanctions against Belarusian potash.

Roman Slaston, the head of Ukraine’s main agricultural lobby, said one challenge was that many rail connections through Belarus had been blown up by Belarusian railway employees sympathetic to the Ukrainian cause.

“Given that the Russian Army is still in Belarus, who is going to pay to repair that now?” Mr. Slaston asked. “This is like some kind of madness.”

We don’t grow food to store it,” he said. “People in Africa won’t be fed by our grain sitting in bags in our fields.”

When a French warship bristling with cannons sailed into the port of the Haitian capital in 1825, an emissary from King Charles X came ashore and delivered an astonishing demand: France wanted reparations from the people it had enslaved.

The demand was for 150 million French francs, to be turned over in five annual payments, far more than Haiti could pay.

So France pushed Haiti to take a loan from a group of French banks to start paying. That Sisyphean weight came to be known as the double debt.

Every franc shipped across the Atlantic to an overseas bank vault was a franc not circulating among Haiti’s farmers, laborers and merchants, or not being invested in bridges, schools or factories — the sort of expenditures that help nations become nations, that enable them to prosper.

For a decade, a quarter of Haiti’s total revenue went to paying debts controlled by National City Bank and its affiliate, according to nearly two dozen annual reports prepared by American officials and reviewed by The Times.

After half a century of crushing payments tied to the double debt, Haitians celebrated the news that at last the country would have its own national bank, the sort of institution that in Europe had financed railroads and factories.

“Isn’t it funny,” one Haitian economist wrote, “that a bank that claims to come to the rescue of a depleted public treasury begins not by depositing money but by withdrawing everything of value?”

When the American military invaded Haiti in the summer of 1915, the official explanation was that Haiti was too poor and too unstable to be left to its own devices. Secretary of State Robert Lansing made little effort to mask his contempt for the “African race,” casting the occupation as a civilizing mission intended to end “anarchy, savagery and oppression.”

“I helped make Haiti and Cuba a decent place for the National City Bank boys to collect revenues,” the general who led the U.S. forces in Haiti, said years later, describing himself as a “racketeer for capitalism.”

For decades to come, the United States was the dominant power in Haiti, dissolving parliament at gunpoint, killing thousands and shipping a big portion of Haiti’s earnings to bankers in New York while the farmers who helped generate the profits often lived near starvation.

“Neocolonialism through debt,” is how Thomas Piketty, one of the economists we spoke with, put it. “This drain has totally disrupted the process of state building,” he said.

“They were betrayed by their own brothers, and then by foreign powers.”

In an 1875 loan, the French bankers took a 40 percent cut off the top.

The double debt has largely faded into history. Generations of French profited richly from the financial exploits of their forebears, but that is rarely taught in classrooms.

“This is part of my family history I never knew,” said one sixth-generation descendant of Napoleon’s first wife.

Even in Haiti, the full story was long unknown. Then in 2003, President Jean-Bertrand Aristide stunned Haitians by denouncing the debt imposed by France and demanding reparations.

North Korea produced an estimated 4.5 million tons of grain last year, dropping 3.8% from 2021, according to the South Korean government. South Korea’s spy agency has said North Korea needs about 5.5 million tons of grain to feed its population.

More than 10 million North Koreans suffered malnourishment and hunger during the pandemic, with 41% of the population undernourished between 2019 and 2021

About one-fifth of North Korean children suffer from impaired growt

North Korea spends nearly a quarter of its gross domestic product on its military, according to U.S. State Department estimates. The Kim regime spent between $340 million and $530 million on ballistic missile launches last year

Military officials didn’t receive food rations for their families during some months last year, he said. Pharmacies have only one-fifth of the medical supplies that they had before the pandemic, he said.

“The inability to provide for the military, the Kim regime’s most loyal support base, indicates that the food problem is very real,” Mr. Lee said.

One 12th-grade student in Kabul said the decision had stamped out her last bit of hope that she could achieve her dream of becoming a lawyer.

“Education was the only way to give us some hope in these times of despair, and it was the only right we hoped for, and it has been taken away,” the student, Zahra Rohani, 15, said.

On Monday, the Ministry of Education had announced that all schools, including girls’ high schools, would reopen on Wednesday at the start of the spring semester. The following day, a Ministry of Education spokesman released a video congratulating all students on the return to class.

Mehrin Ekhtiari, a 15-year-old student in 10th grade, said she and her classmates were shocked when a teacher announced the news to the classroom on Wednesday morning.

“My hope was revived after eight months of waiting,” she said, adding later that the announcement had “dashed all my dreams.”

In recent months, the Taliban had also come under mounting pressure to permit girls to attend high school from international donors, aid from which has helped keep Afghanistan from plunging further into a humanitarian catastrophe set off by the collapse of the former government and Western sanctions that crippled the country’s banking system.

. He attributed the decision to a lack of a religious uniform for girls and the lack of female teachers for girls, among other issues.

Many principals and teachers said they only received the new instructions from the ministry after students had already arrived for classes Wednesday.

The move came a little more than a week before a pledging conference where the United Nations had hoped donor countries would commit millions of dollars in badly needed aid, as Afghanistan grapples with an economic collapse that has left over half of the population without sufficient food to eat. It is unclear whether donors will be willing to contribute following the Taliban’s abrupt reversal on the key commitment of girl’s education.

“I’m deeply troubled by multiple reports that the Taliban are not allowing girls above grade 6 to return to school,” tweeted Ian McCary, the chief of mission for U.S. Embassy Kabul, currently operating out of Doha, Qatar. “This is very disappointing & contradicts many Taliban assurances & statements.”

When schools reopened in September for grades seven through 12, Taliban officials told only male students to report for their studies, saying that girls would be allowed to return after security improved and enough female teachers could be found to keep classes fully segregated by sex.

Later, Taliban officials insisted that Afghan girls and women would be able to go back to school in March, and many Western officials seized on that promise as a deadline that would have repercussions for the Taliban’s efforts to eventually secure international recognition and the lifting of at least some sanctions.

The Taliban on Wednesday abruptly reversed their decision to allow girls’ high schools to reopen this week, saying that they would remain closed until officials draw up a plan for them to reopen in accordance with Islamic law.

At one girls’ private high school in Kabul, more female students had arrived for classes Wednesday morning compared to previous years, the school’s principal said in an interview.

“They came to my office, crying,” said the principal,

The decision “doesn’t make sense at all, and it has no logic,” the principal added, noting that the new government has had over seven months to design a new uniform and address the teacher shortage.

Since seizing power, the Taliban have been reckoning with the need for consistent policies while struggling to tread a delicate line that satisfies their more moderate members, their hard-line base and the international community.

The sudden reversal on the girls’ secondary schools seemed to validate existing concerns among Western donors that, despite assurances, they are dealing with much the same Taliban as the 1990s.

“The Taliban have been solidifying their position and becoming hard-line on a lot of issues,” Mr. Bahiss said.

In recent months, the new government has issued restrictions on local media and cracked down on peaceful protests. Taliban officials have also issued new restrictions on women, including a ban on traveling farther than 45 miles in a taxi unless they are accompanied by a male chaperone.

“You can’t exercise your other rights if you can’t leave your house to attend your job or attend education classes,” Ms. Barr said. “It’s a really alarming sign of what may be to come, it’s likely to herald further crackdowns on women.”

Dr. Longo, who is also a professor of gerontology and director of the U.S.C. Longevity Institute in California, has long advocated longer and better living through eating Lite Italian, one of a global explosion of Road to Perpetual Wellville theories about how to stay young in a field that is itself still in its adolescence.

In addition to identifying genes that regulate aging, he has created a plant and nut-based diet with supplements and kale crackers that mimics fasting to, he argues, allow cells to shed harmful baggage and rejuvenate, without the down side of actually starving.

He has patented and sold his ProLon diet kits; published best-selling books (“The Longevity Diet”); and been called an influential “Fasting Evangelist” by Time magazine.

Last month, he published a new study based on clinical trials of hundreds of older people — including in the Calabria town from which his family hails — that he said suggests that periodic cycles of his own faux-fasting approach could reduce biological age and stave off illnesses associated with aging.

“It’s very similar to the original Mediterranean diet, not the present one,” she said, pointing at photographs on the wall of a bowl of ancient legumes similar to the chickpe

“Almost nobody in Italy eats the Mediterranean diet,”

He added that many Italian children, especially in the country’s south, are obese, bloated on what he calls the poisonous five Ps — pizza, pasta, protein, potatoes and pane (or bread).

in recent years, Silicon Valley billionaires who hope to be forever young have funded secretive labs. Wellness articles have conquered newspaper home pages and Fountains-of-Youth workout and diet ads featuring insanely fit middle-aged people teem on the social media feeds of not insanely fit middle-aged people.

he said Italy’s lack of investment in research was a disgrace.

even as concepts like longevity, intermittent fasting and biological age — you’re only as old as your cells feel! — have gained momentum, governments like Italy’s are fretting over a creakier future in which booming populations of old people drain resources from the dwindling young.

many scientists, nutritionists and longevity fanatics the world over continue to stare longingly toward Italy, seeking in its deep pockets of centenarians a secret ingredient to long life.

“Probably they kept breeding between cousins and relatives,” Dr. Longo offered, referring to the sometimes close relations in little Italian hill towns. “At some point, we suspect it sort of generated the super-longevity genome.”

The genetic drawbacks of incest, he hypothesized, slowly vanished because those mutations either killed their carriers before they could reproduce or because the town noticed a monstrous ailment — like early onset Alzheimer’s — in a particular family line and steered clear.

Dr. Longo wonders whether Italy’s centenarians had been protected from later disease by a starvation period and old-fashioned Mediterranean diet early in life, during rural Italy’s abject war-era poverty. Then a boost of proteins and fats and modern medicine after Italy’s postwar economic miracle protected them from frailty as they got older and kept them alive.

At age 16, he moved to Chicago to live with relatives and couldn’t help notice that his middle-aged aunts and uncles fed on the “Chicago diet” of sausages and sugary drinks suffered diabetes and cardiovascular disease that their relatives back in Calabria did not.

He eventually earned his Ph.D in biochemistry at U.C.L.A. and did his postdoctoral training in the neurobiology of aging at U.S.C. He overcame early skepticism about the field to publish in top journals and became a zealous evangelizer for the age-reversing effects of his diet. About 10 years ago, eager to be closer to his aging parents in Genoa, he took a second job at the IFOM oncology institute in Milan.

He found a fount of inspiration in the pescatarian-heavy diet around Genoa and all the legumes down in Calabria.

he also found the modern Italian diet — the cured meats, layers of lasagna and fried vegetables the world hungered for — horrendous and a source of disease.

His private foundation, also based in Milan, tailors diets for cancer patients, but also consults for Italian companies and schools, promoting a Mediterranean diet that is actually foreign to most Italians today.

“Italy’s got such incredible history and a wealth of information about aging,” he said. “But spends virtually nothing.”

He talked about how he and others had identified an important regulator of aging in yeast, and how he has investigated whether the same pathway was at work in all organisms.

Dr. Longo said he thinks of his mission as extending youth and health, not simply putting more years on the clock, a goal he said could lead to a “scary world,” in which only the rich could afford to live for centuries, potentially forcing caps on having children

A more likely short-term scenario, he said, was division between two populations. The first would live as we do now and reach about 80 or longer through medical advancements. But Italians would be saddled with long — and, given the drop in the birthrate, potentially lonely — years burdened by horrible diseases.

The other population would follow fasting diets and scientific breakthroughs and live to 100 and perhaps 110 in relative good health.