When Greenland was green: Ancient soil from beneath a mile of ice offers warnings for the future - Phys.org
phys.orgSubmitted by physorg8953 in science
About 400,000 years ago, large parts of Greenland were ice-free. Scrubby tundra basked in the sun's rays on the island's northwest highlands. Evidence suggests that a forest of spruce trees, buzzing with insects, covered the southern part of Greenland. Global…