Yale Environment 360: The rapidly melting Greenland ice sheet could unearth a secret, Cold War-era military base as early as next century, according to a new study in the journal Geophysical Research Letters. Camp Century was built in 1959 to explore whether the U.S. could covertly deploy ballistic missiles from within the ice sheet, a mission known as Project Iceworm. By 1967, the military had abandoned the base with little clean up, expecting it would be naturally entombed as snow and ice continued to accumulate on...