By Cassandra Garrison
(Reuters) – Greenland’s ice sheet lost a record amount of mass last year, according to a study published on Thursday, a finding that could prompt scientists to redefine their worst-case scenario as they assess the effects of climate change.
The rate of ice loss had slowed for a two-year period amid cooler summers and higher snowfall in western Greenland through 2018. But last year, as warm air flowed northward from lower latitudes, the frozen island experienced a record loss in its ice mass, geoscientist and glaciologist Ingo Sasgen of the Alfred Wegener Institute in Germany said.
That loss of 532 gigatons of ice – equivalent to about 66 tons of ice for each person on Earth – was 15% more than the previous record in