Earth May Have Been a 'Water World' 3 Billion Years Ago, Scientists Find

“Ice melting in Greenland contributes greater than a millimeter rise to sea degree yearly,” studies CNN, including that now “that is prone to worsen.”

And Forbes shares some context:
Final week, the world was given two extra harsh reminders of what the long run holds as residents of Italy’s Aosta valley had been instructed to evacuate fearing that a large portion of the Mont Blanc glacier, the equal dimension of Milan’s cathedral, may collapse. Then the final intact ice shelf within the Canadian Arctic, the Milne Ice Shelf, collapsed dropping a piece of ice greater than Manhattan to the Arctic ocean.

In April, a examine printed in The Cryosphere recommended that atmospheric circulation patterns contributed in a major approach to Greenland’s fast lack of ice and as such the long run melting predictions could possibly be underestimated by half. Now, in accordance with a brand new paper printed within the journal Nature Communications Earth and Setting, Greenland’s glaciers have shrunk a lot that even when world warming had been to cease proper now, the ice sheet would proceed shrinking.
Satellite tv for pc knowledge from the final 40 years exhibits that Greenland’s glaciers have handed a tipping level of kinds, the place the snowfall that replenishes the ice sheet every year can’t sustain with the ice that’s flowing into the ocean from glaciers…. Glacier retreat has knocked the dynamics of the entire ice sheet into a continuing state of loss.
The article notes that the paper was launched “on the identical day that the U.S. Nationwide Oceanic and Atmospheric Administration reported that July 2020 was the second-warmest July on file and that Arctic ice is at present at a file low for summer season — the bottom in 42 years of record-keeping.”

Learn extra of this story at Slashdot.


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