Ancient soil from beneath a mile of ice in Greenland offers warnings for the future

Facts for Prelims (FFP)   Source: The Conservation  Context: Approximately 400,000 years ago, large parts of Greenland were ice-free, and evidence suggests it was covered in spruce trees and scrubby tundra. Scientists have now determined the precise date of this ice-free period to be around 416,000 years ago, lasting for about 14,000 years. Researchers extracted …