22,000 years of history evaporates after freezer failure melts Arctic ice cores

This is the best tl;dr I could make, original reduced by 82%. (I'm a bot) An ice core from the Penny Ice Cap on Baffin Island lost about a third of its mass, amounting to about 22,000 years of history, while a core from Mount Logan, Canada's tallest mountain, saw 16,000 years melted away.

from Pocket http://ift.tt/2nRWigC