A sweeping study of all the world’s glaciers outside of the Greenland and the Antarctic ice sheets has found that nearly half of them will melt by century’s end, even if the world meets its most ambitious global warming goal.
The study released Thursday finds that worldwide, this process of shrinkage, up to and including total loss, will especially affect many of the world’s smaller glaciers, those less than 1 square kilometer in area.
of warming. But that’s not always true of many smaller glaciers in the middle latitudes — in regions including“Roughly 80 percent of the world’s glaciers are less than 1 square kilometer,” Rounce said. “They are very small in terms of area, so when you think about future changes in a warming climate, they are very challenged in order to survive.”
The new study goes beyond prior research in seeking to project the individual fates of all 215,000 or more “The glacier areas around the globe are quite varied and have unique responses to the changing climate,” said Christopher Harig, a glaciologist at the University of Arizona who was not involved in the latest research. “So there has been a rapid advance in glacier modeling to really capture what is happening in the different settings.”
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