The World’s Fastest Glacier Is Loud, Dangerous, and Transfixing.

Even without a tongue, Sermeq Kujalleq is loud. Its front is an enormous ice wall—stretching 300 feet at its peak, or as tall as the Statue of Liberty—that constantly explodes. Icebergs break off the glacier accompanied by blasts and roars akin to a rocket launch. When they hit the sea below, the calved icebergs can create huge waves that threaten to swallow people, boats, and buildings.