The main purpose of this ongoing blog will be to track planetary extreme, or record temperatures related to climate change. Any reports I see of ETs will be listed below the main topic of the day. I’ll refer to extreme or record temperatures as ETs (not extraterrestrials).😉
Main Topic: Rising Seas From Fossil Fuels Threaten Inland Migration ‘Never Witnessed in Modern Civilization’
Dear Diary. We all know that rising seas due to climate change eventually will force people worldwide to lose their seaside homes and businesses and move inland. But as usual, I have to ask how badly and how fast. A relatively slow rise will make a transition easier, of course. Still, it burns me that any tragic scenario could have been averted if we had put our fossil fuel house in order in the 1990s. Now meager efforts to stem a rising tide are being scaled back, particularly in the U.S.
Here are more details on what is a ‘suicidal’ path that we are currently on from Common Dreams:
https://www.commondreams.org/news/sea-level-rise-migration
A beach house adorned with “RIP HOME” is demolished by workers before it falls down the sea cliff on December 11, 2023 in Hemsby, England. The collapse of a private access road, prompted by high tides and winds, led Great Yarmouth Borough Council to declare some houses “not structurally sound and unsafe.” (Photo: Christopher Furlong/Getty Images)
Rising Seas From Fossil Fuels Threaten Inland Migration ‘Never Witnessed in Modern Civilization’
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.”
May 20, 2025
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.”
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.”
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.”
Our work is licensed under Creative Commons (CC BY-NC-ND 3.0). Feel free to republish and share widely.
Jessica Corbett is a senior editor and staff writer for Common Dreams.
Here are more “ETs” recorded from around the planet the last couple of days, their consequences, and some extreme temperature outlooks, as well as any extreme precipitation reports:
Here is More Climate News from Monday:
(As usual, this will be a fluid post in which more information gets added during the day as it crosses my radar, crediting all who have put it on-line. Items will be archived on this site for posterity. In most instances click on the pictures of each tweet to see each article. The most noteworthy items will be listed first.)