There is a glacier that sits a kilometer below the highest peak within B.C.’s border, called Combatant Col. Scientists have been working on its icy surface to pull out ice cores as quickly as they can. Locked within these smooth cylinders are clues about what the region’s climate was like years ago that could help us understand today’s climate challenges.

Justine Hunter is a Globe reporter based in B.C. and she explains how researchers get these precious time capsules off the top of the mountain and what scientific secrets they are looking for once the cores are safely stored in a very cold lab in Edmonton, Alta..

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