As climate change causes ocean temperatures to rise, one of Greenland's previously most stable glaciers is now reducing at an unheard-of rate, according to a new study.

The study was led by researchers at The Ohio State University. The team found the truth. Between 2018 and 2021, Steenstrup Glacier in Greenland reduced about 5 miles, thinned by about 20% and doubled in the amount of ice that went into the ocean. According to the study, such a rapid change is so extraordinary among Greenland's ice formations that it now places Steenstrup Glacier in the top 10% of glaciers that contribute to the entire region's total ice discharge.

Steenstrup Glacier is part of the Greenland Ice Sheet, a body of ice that covers nearly 80% of the world's largest island, which is also the single largest contributor to the global sea rise from the cryosphere（冰冻圈），the portion of Earth's ecosystem that includes all of its frozen water. While the region plays a crucial part in balancing the global climate system, the area is steadily reducing as it loses hundreds of billions of tons of ice each year because of global warming.

As far as scientists knew, Steenstrup Glacier had been stable for decades. It was hardly influenced by the rising temperatures that had influenced so many other regional glaciers, likely because of its special position in shallow water. It wasn't until Thomas Chudley, lead author of the study, and his colleagues collected observational and modeling data from previous remote sensing analyses on the glacier that the team realized Steenstrup Glacier was likely experiencing melting due to anomalies（反常现象）in deeper Atlantic water.

According to Chudley, the current situation in Greenland serves as an early warning sign for possible future events in West Antarctica within the next few centuries. He also expressed the importance of conducting direct observations in the fjord(峡湾) to understand the reasons behind the changes observed in Steenstrup Glacier.