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Source: Joe Raedle/Getty Images

One of the world's thickest mountain glaciers is melting, due to rising temperatures


Taku Glacier, located just outside of Juneau, Alaska, is melting.

This is far from the first glacier to make headlines for retreating as a consequence of the climate crisis. But what's notable is how unaffected the very thick Taku Glacier was by global warming, which has been affecting (and killing) other glaciers — until now.

Mauri Pelto, a glaciologist from Nichols College in Massachusetts, has been monitoring a group of 250 glaciers from all over the world for decades. In Pelto's eyes, Taku was the final ray of hope, as it was the only glacier that had remained unchanged for so many decades. “This is a big deal for me because I had this one glacier I could hold on to,” Pelto told NASA. “But not anymore. This makes the score climate change: 250 and alpine glaciers: 0."