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... Climate change is dramatically reshaping how Greenland's ice sheet melts, according to a new study led by the University of Barcelona and published in Nature Communications. Researchers found that extreme melting events are now happening more often, covering larger areas, and producing significantly more meltwater than in the past.

Since 1990, the surface area affected by these extreme events has been expanding by about 2.8 million km2 per decade. At the same time, the amount of water released from melting ice has surged. Between 1950 and 2023, extreme melt events produced an average of 12.7 gigatons of water per decade. Since 1990, that figure has jumped to 82.4 gigatons per decade, marking a sixfold increase.

Record-Breaking Melt Events Are Becoming More Common

Most of the most intense melting episodes have occurred in recent decades. Seven of the ten most extreme events on record have taken place since 2000, including major events in August 2012, July 2019, and July 2021. These events stand out because they have no comparable dynamic precedents, highlighting how unusual current conditions have become. ...