Greenland and Antarctic ice sheets have lost 12.5 trillion tonnes
Odisha News, Odisha Latest news, Odisha Daily - OrissaPOST
A major scientific study finds about 12.5 trillion tonnes of ice have melted from Greenland and Antarctica since 1979, turning into nearly 3 quadrillion gallons (11.3 quadrillion litres) of water and raising global sea levels by about 1 inch (3.1 centimetres). Researchers attribute five-sixths of the loss to warmer ocean waters eroding ice from below and the sides, causing glaciers to speed into the sea; dynamic discharge and glacier retreats such as Jakobshavn losing up to 50 metres a day raise concerns about future instability. The analysis used 45 independent surveys and 27 satellites and extended records back to the 1970s, with scientists warning the changes may continue for decades.
Ice sheets lost 12.5 trillion tonnes since 1979.
Context
Scientists combined European and NASA satellite data to extend ice records back to the 1970s. The study shows melting accelerated in the 2010s but briefly paused from 2020 to 2023 due to short-term weather. If warming persists, the ice…
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