Box and some other leading climate scientists agree that Earth is already locked into at least 3.2 feet (1 meter) of global sea level rise by the end of this century — a projection that even drastic cuts in carbon dioxide emissions won’t reverse.
This could be disastrous for many of the world’s coastal cities — from Miami to Mumbai and New York City to Shanghai — and the people who call them home.
But scientists have stressed that as oceans rise, they won’t do so evenly. Because ice sheets are so huge, changes in their mass will affect Earth’s gravity and rotation, determining how meltwater is distributed.
Counterintuitively, that means that sea levels closest to melting land ice may actually drop, shielding places like Reykjavik, Iceland from being inundated.
Researchers from NASA’s Jet Propulsion Laboratory recently released a study that takes those variables into account — pinpointing how melting glaciers may someday flood coastal cities around the world.
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Publish date : 2020-08-17 15:05:00
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