NASA satellites have provided more data than ever before on what has been happening to Antarctica and Greenland’s ice over the past 16 years with dire, if not entirely unexpected, findings. Both polar ice sheets are losing billions of tonnes of ice every year and adding to sea-level rise. The results revealed that although there are small gains of ice in East Antarctica, they have been dwarfed by massive losses in West Antarctica, NASA reported. The net ice mass loss has led to almost half an inch of sea-level rise between 2003 and 2019 – just under a third of the total sea-level rise around the world in that time. The findings were based on information from the space agency’s ICESat and ICESat-2 satellite laser altimeters – devices that use laser pulses to measure the elevation and thickness of ice sheets and help better understand global climate change.
Independent 3rd May 2020 read more »