"ABOARD A NASA RESEARCH PLANE OVER GREENLAND — The fields of rippling ice 500 feet below the NASA plane give way to the blue-green of water dotted with irregular chunks of bleached-white ice, some the size of battleships, some as tall as 15-story buildings.
Like nearly every other glacier on Greenland, the massive Kangerlussuaq is melting. In fact, the giant frozen island has seen one of its biggest melts on record this year. NASA scientist Josh Willis is now closely studying the phenomenon in hopes of figuring out precisely how global warming is eating away at Greenland’s ice.
Specifically, he wants to know whether the melting is being caused more by warm air or warm seawater. The answer could be crucial to Earth’s future.
Water brings more heat to something frozen faster than air does, as anyone who has ever defrosted a steak under the faucet knows."
Seth Borenstein reports for the Associated Press August 15, 2019.
