Ice cores from top-secret Army base reveal Greenland was largely ice-free millions of years ago

(Natural News) A new study published in the journal PNAS suggests that Greenland might have been largely ice-free millions of years ago. Researchers arrived at this conclusion after studying ice core samples that U.S. Army scientists dug from a mile below northwestern Greenland in 1966 as part of a top-secret project codenamed “Iceworm.” The ice core was lost in a freezer for decades before…