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Study: Key Antarctic ice shelf is speeding up its collapse Pine Island Glacier calves several new icebergs on Feb. 11, 2020, as seen via satellite. Photo: NASA Earth Observatory The Pine Island Glacier on the West Antarctic Ice Sheet is responsible for more than a quarter of Antarctica s contribution to global sea level rise over the past decades. Now, a new study shows it is more vulnerable to rapid melting than thought, because climate change is weakening its natural braking system. Why it matters: At stake is the future of a glacier containing about 160 trillion tons of ice, which if it were all to melt into the ocean would cause about 1.6 feet of global sea level rise.

United kingdomIan joughinPierre dutrieuxUniversity of washingtonBritish antarcticPine island glacierWest antarctic ice sheetScience advancesThwaites glacierBritish antarctic surveyClimate changeGlobal warmingஒன்றுபட்டது கிஂக்டம்ஈயந் ஜௌகிங்பல்கலைக்கழகம் ஆஃப் வாஷிங்டன்பிரிட்டிஷ் அண்டார்டிக்