Environment
Greenland “Becoming Darker” As Less Fresh Snow Falls
American researchers have found that Greenland is “becoming darker” as the ice and snow that formerly permanently covered much of it is melting away due to climate change. The increasingly darker landmass means the rate of melting is likely to accelerate as the darker land absorbs heat, rather than reflecting it away as white snow does. The findings of a 2016-17 study of Greenland's ice sheet by scientists from Dartmouth College have been published in Geophysical Research Letters. "As snow ages, even over hours to a few days, you get this reduction in reflectivity, and that's why the fresh snow is so important," says Erich Osterberg, associate professor of earth sciences and the principal investigator of the study. The scientists…