A new study says no matter how much the world cuts back on carbon emissions, a key and sizable chunk of Antarctica is essentially doomed to an unavoidable melt.
Though the full melt will take hundreds of years, it will be enough to reshape where and how people live in the future.Though the full melt will take hundreds of years, slowly adding nearly 6 feet to sea levels, it will be enough to reshape where and how people live in the future, the study’s lead author said.
While past studies have talked about how dire the situation is, Naughten was the first to use computer simulations to study the key melting component of warm water melting ice from below, and the work looked at four different scenarios for how much carbon dioxide the world pumps into the atmosphere. In each case, ocean warming was just too much for this section of the ice sheet to survive, the study found.which float over the ocean in this area of Antarctica that is already below sea level.
Naughten doesn’t like to use the word “doomed,” because she said 100 years from now the world might not just stop but reverse carbon levels in the air and global warming. But she said what’s happening now on the ground is a slow collapse that can’t be stopped, at least not in this century. Naughten’s study did not calculate how much ice would be lost, how much sea level would rise and at what speed. But she estimated that the amount of ice in the area most at risk if it all melted would raise sea levels by about 1.8 meters .
This type of sea level rise would be “absolutely devastating” if it happened over 200 years, but if it could be stretched out over 2,000 years, humanity could adapt, Naughten said.While this part of Antarctica’s ice sheet is destined to be lost, other vulnerable sections of Earth’s environment can still be saved by reducing heat-trapping emissions so there is reason to still cut back on carbon pollution, Naughten said.
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Even with carbon emissions cuts, a key part of Antarctica is doomed to slow collapse, study saysA new study says no matter how much the world cuts back on carbon emissions, a key and sizable chunk of Antarctica is essentially doomed to an unavoidable melt.
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Even with carbon emissions cuts, a key part of Antarctica is doomed to slow collapse, study saysA new study says no matter how much the world cuts back on carbon emissions, a key and sizable chunk of Antarctica is essentially doomed to an unavoidable melt.
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Even with carbon emissions cuts, a key part of Antarctica is doomed to slow collapse, study saysA new study says no matter how much the world cuts back on carbon emissions, a key and sizable chunk of Antarctica is essentially doomed to an unavoidable melt.
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