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It all started in a small underground bunker in Antarctica, with a French scientist, his two colleagues, and a glass of whiskey. After a long day of drilling through ice, a few ice chips from a core sample were precisely what his glass of amber-colored liquid needed. While staring at his drink, the ice emitted several bubbles that floated to the surface. It dawned on the scientist that the air (specifically the CO2) trapped in the bubbles if analyzed, might be able to tell a story.