Cold meltwater running off Antarctica’s ice sheets and into the ocean could dampen the pace of global temperature rise, a new study in Nature suggests. The rate of melt could
knock as much as 0.4C off global temperature rise, the researchers say, potentially delaying exceeding the 1.5C and 2C by around a decade. Antarctica ice melt could also have a wider impact on the Earth’s climate, rising sea levels (estimated
to be 1 meter in 2100) reducing rainfall in the southern hemisphere and increased rainfall in the northern hemisphere. It could also cause warming of the ocean beneath the surface layer around the Antarctic coast, the researchers add, leading to further
ice-sheet melt and additional sea level rise.