'Ghost glaciers' protect Greenland's ancient landscapes
Tuesday, August 6, 2013 - 19:20
in Earth & Climate
A Greenland landscape carved when humans first conquered fire has been protected from erosion ever since by "ghost glaciers," a new study finds.In central northwestern Greenland, near Baffin Bay, the island's ice sheet advanced and retreated many times in the past 800,000 years.