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With governments "scaling back their already meager" actions to tackle climate breakdown, said one ecologist, "our present-day human culture is on a suicide course."
Less than six months away from the next United Nations summit for parties to the Paris climate agreement, scientists on Tuesday released a study showing that even meeting the deal's 1.5°C temperature target could lead to significant sea-level rise that drives seriously disruptive migration inland.
Governments that signed on to the 2015 treaty aim to take action to limit global temperature rise by 2100 to 1.5°C beyond preindustrial levels. Last year was not only the hottest in human history but also the first in which the average global temperature exceeded 1.5°C. Multiple studies have warned of major impacts from even temporarily overshooting the target, bolstering demands for policymakers to dramatically rein in planet-heating fossil fuels.
The study published Tuesday in the journal Nature Communications Earth and Environmentwarns that 1.5°C "is too high" and even the current 1.2°C, "if sustained, is likely to generate several meters of sea-level rise over the coming centuries, causing extensive loss and damage to coastal populations and challenging the implementation of adaptation measures."
"To avoid this requires a global mean temperature that is cooler than present and which we hypothesize to be closer to +1°C above preindustrial, possibly even lower, but further work is urgently required to more precisely determine a 'safe limit' for ice sheets," the paper states, referring to Antarctica and Greenland's continental glaciers.
Co-author Jonathan Bamber told journalists that "what we mean by safe limit is one which allows some level of adaptation, rather than catastrophic inland migration and forced migration, and the safe limit is roughly 1 centimeter a year of sea-level rise."
"If you get to that, then it becomes extremely challenging for any kind of adaptation, and you're going to see massive land migration on scales that we've never witnessed in modern civilization," said the University of Bristol professor.
In terms of timing, study lead author Chris Stokes, from the United Kingdom's Durham University, said in a statement that "rates of 1 centimeter per year are not out of the question within the lifetime of our young people."
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There are currently around 8.18 billion people on the planet. The study—funded by the United Kingdom's Natural Environment Research Council—says that "continued mass loss from ice sheets poses an existential threat to the world's coastal populations, with an estimated 1 billion people inhabiting land less than 10 meters above sea level and around 230 million living within 1 meter."
"Without adaptation, conservative estimates suggest that 20 centimeters of [sea-level rise] by 2050 would lead to average global flood losses of $1 trillion or more per year for the world's 136 largest coastal cities," says the study, also co-authored by University of Wisconsin-Madison professor Andrea Dutton and University of Massachusetts Amherst's Rob DeConto in the United States.
DeConto said Tuesday that "it is important to stress that these accelerating changes in the ice sheets and their contributions to sea level should be considered permanent on multigenerational timescales."
"Even if the Earth returns to its preindustrial temperature, it will still take hundreds to perhaps thousands of years for the ice sheets to recover," the professor explained. "If too much ice is lost, parts of these ice sheets may not recover until the Earth enters the next ice age. In other words, land lost to sea-level rise from melting ice sheets will be lost for a very, very long time. That's why it is so critical to limit warming in the first place."
Not really a surprise We are already committed to a 12m+ sea-level rise, sufficient to drown every coastal town and city on the planet The only question is how long will this take www.theguardian.com/environment/...
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— Prof Bill McGuire (@profbillmcguire.bsky.social) May 20, 2025 at 7:50 AM
While the paper sparked some international alarm, Stokes highlighted what he called "a reason for hope," which is that "we only have to go back to the early 1990s to find a time when the ice sheets looked far healthier."
"Global temperatures were around 1°C above preindustrial back then, and carbon dioxide concentrations were 350 parts per million, which others have suggested is a much safer limit for planet Earth," he said. "Carbon dioxide concentrations are currently around 424 parts per million and continue to increase."
The new paper continues an intense stream of bleak studies on the worsening climate emergency, and specifically, looming sea-level rise. Another, published by the journal Nature in February, shows that glaciers have lost an average of 273 billion metric tons of ice annually since 2000.
Despite scientists' warnings, the government whose country is responsible for the largest share of historical planet-heating emissions, the United States, is actually working to boost the fossil fuel industry. Upon returning to office in January, U.S. President Donald Trump declared an "energy emergency" and ditched the Paris agreement.
Responding to the new study on social media, Scottish ecologist Alan Watson Featherstone called out both the U.S. and U.K. governments. He said that with many countries "scaling back their already meager and [totally] inadequate actions to address climate breakdown, our present-day human culture is on a suicide course."
"Thousands of refugees from across the globe remain stranded in limbo despite being fully vetted and approved for travel," said one refugee advocate.
While the Trump administration has largely halted refugee resettlement in the United States, in the coming days the U.S. government is gearing up to welcome a group of Afrikaners whom officials have determined are refugees.
A group of 54 Afrikaners, white South Africans largely descended from Dutch settlers, have been granted refugee status and are slated to arrive in the U.S. on Monday, according toNPR, which cited three unnamed sources. There will reportedly be a press conference featuring high level officials from the U.S. Department of State and Department of Homeland Security to welcome them at the airport, which one unnamed source told the outlet would be unusual.
In February, U.S. President Donald Trump signed an executive order announcing that the U.S. would "promote the resettlement of Afrikaner refugees escaping government-sponsored race-based discrimination, including racially discriminatory property confiscation."
Trump was referring to a law passed into South Africa earlier this year, allowing the government to take land under set circumstances, when it is not being used or when it would be in the public interest to redistribute the land. The law is meant to help rectify the economic exclusion that Black South Africans faced during apartheid. In February, South African President Cyril Ramaphosa said that the government "has not confiscated any land."
Billionaire Elon Musk, who has played a core role in the Trump administration's efforts to slash government spending and personnel and is South African-born, has accused the government of South Africa of having "openly racist ownership laws."
According to a memo first obtained by the outlet The Lever, officials in the Department of Health and Human Services' Office of Refugee Resettlement sought approval from Health and Human Services Secretary Robert F. Kennedy Jr. for the "mobilization of immediate support for vulnerable incoming Afrikaner refugees," including "housing, health services, and resettlement support upon their arrival." Kennedy greenlit the request.
The Lever reporter who broke the story told NPR that officials made the request because the Trump administration has restricted the usual procedures and channels for assisting refugees.
The Lever also reported that the Office of Refugee Resettlement is planning tap funds from the Preferred Communities program in order to resettle the Afrikaners, a program that's reserved to support particularly vulnerable populations.
Sources who serve refugees in the United States indicated they are ready to help the incoming Afrikaners, but drew a contrast between the administration's readiness to accept this group while other refugee populations have been left stranded due to White House actions.
HIAS, one agency that contracts with the U.S. government to resettle refugees, is committed to welcoming Afrikaners, the organization's president, Mark Hetfield, told the Times. However, "we are profoundly disturbed that the administration has slammed the door in the face of thousands of other refugees approved by [the Department of Homeland Security] months ago, notwithstanding courts ordering the White House to let many of them in."
"Thousands of refugees from across the globe remain stranded in limbo despite being fully vetted and approved for travel, including Afghan allies, religious minorities, and other populations facing extreme violence and persecution," Timothy Young, a spokesperson for Global Refuge, which also supports refugees entering the U.S., told the Times. "We hope this development reflects a broader readiness to uphold the promise of protection for all refugees who meet longstanding legal standards, regardless of their country of origin."
Prior to Trump's first term in office, refugee resettlement generally took 18 to 24 months, according to the American Immigration Council. The Afrikaners set to arrive only had to wait three months, the Times reported. U.S. officials looked at over 8,000 requests from Afrikaners expressing interest in being resettled in the United States, also per the Times.
Francis’s project for the Earth—a recovery of fellow feeling, with a special attention to the poor—is the only thing that can save us over time.
Just in case I thought one couldn’t feel more forlorn right now, the word came this morning of the death of Pope Francis. It hit me hard—not because I’m a Catholic (I’m a Methodist) but because I had always felt buoyed by his remarkable spirit. If he could bring new hope and energy to an institution as hidebound as the Vatican, there was reason for all of us to go on working on our own hidebound institutions—and if he could stand so completely in solidarity with the world’s poor and vulnerable, then it gave the rest of us something to aim for.
I thought this from the start, when he became the first pope to choose the name of Francis—that countercultural blaze of possibility in a dark time—and when he showed his mastery of the art of gesture, washing the feet of women, of prisoners, of Muslim refugees. (Only Greta Thunberg, with her school strike, has so mastered the power of gesture in modern politics).
But he brought that moral resolve to the question of climate change, making it the subject of his 2015 encyclical “Laudato Si,” the most important document of his papacy and arguably the most important piece of writing so far this millennium. I spent several weeks living with that book-length epistle in order to write about it for The New York Review of Books, and though I briefly met the man himself in Rome, it is that encounter with his mind that really lives with me. “Laudato Si” is a truly remarkable document—yes, it exists as a response to the climate crisis (and it was absolutely crucial in the lead-up to the Paris climate talks, consolidating elite opinion behind the idea that some kind of deal was required). But it uses the climate crisis to talk in broad and powerful terms about modernity.
The ecological problems we face are not, in their origin, technological, says Francis. Instead, “a certain way of understanding human life and activity has gone awry, to the serious detriment of the world around us.” He is no Luddite (“who can deny the beauty of an aircraft or a skyscraper?”) but he insists that we have succumbed to a “technocratic paradigm,” which leads us to believe that “every increase in power means ‘an increase of “progress” itself’… as if reality, goodness and truth automatically flow from technological and economic power as such.” This paradigm “exalts the concept of a subject who, using logical and rational procedures, progressively approaches and gains control over an external object.” Men and women, he writes, have from the start
intervened in nature, but for a long time this meant being in tune with and respecting the possibilities offered by the things themselves. It was a matter of receiving what nature itself allowed, as if from its own hand.
In our world, however, “human beings and material objects no longer extend a friendly hand to one another; the relationship has become confrontational.” With the great power that technology has afforded us, it’s become
easy to accept the idea of infinite or unlimited growth, which proves so attractive to economists, financiers, and experts in technology. It is based on the lie that there is an infinite supply of the Earth’s goods, and this leads to the planet being squeezed dry beyond every limit.
The deterioration of the environment, he says, is just one sign of this “reductionism which affects every aspect of human and social life.”
I think Francis’s project for the Earth—a recovery of fellow feeling, with a special attention to the poor—is the only thing that can save us over time. But it will take time—obviously for the moment we’ve chosen the opposite path, as exemplified by the fact that JD Vance, scourge of the refugee, darkened his last day on Earth.
In the meantime, Francis was very much a pragmatist, and one advised by excellent scientists and engineers. As a result, he had a clear technological preference: the rapid spread of solar power everywhere. He favored it because it was clean, and because it was liberating—the best short-term hope of bringing power to those without it, and leaving that power in their hands, not the hands of some oligarch somewhere.
As a result, he followed up “Laudato Si” with a letter last summer, “Fratello Sole,” which reminds everyone that the climate crisis is powered by fossil fuel, and which goes on to say
There is a need to make a transition to a sustainable development model that reduces greenhouse gas emissions into the atmosphere, setting the goal of climate neutrality. Mankind has the technological means to deal with this environmental transformation and its pernicious ethical, social, economic, and political consequences, and, among these, solar energy plays a key role.
As a result, he ordered the Vatican to begin construction of a field of solar panels on land it owned near Rome—an agrivoltaic project that would produce not just food but enough solar power to entirely power the city-state that is the Vatican. It is designed, in his words, to provide “the complete energy sustenance of Vatican City State.” That is to say, this will soon be the first nation powered entirely by the sun.
The level of emotion—of love—in this decision is notable. The pope named “Laudato Si” (“Praised be”) after the first two words of his namesake’s “Canticle to the Sun,” and “Fratello Sole” was even more closely tied—those are the words that the first Francis used to address Brother Sun. I reprint the opening of the Canticle here, in homage to both men, and to their sense of humble communion with the glorious world around us.
All praise be yours, my Lord, through all that you have made,
And first my lord Brother Sun,
Who brings the day; and light you give to us through him.
How beautiful is he, how radiant in all his splendor!
Of you, Most High, he bears the likeness.
The world is a poorer place this morning. But far richer for his having lived.