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Deeper into the delta

Summer Student Fellow Sam Zipper spent his summer on balmy Cape Cod studying the western Canadian Arctic. Zipper analyzed sediment cores from the Mackenzie River Delta with his WHOI sponsor, Liviu Giosan. The team constructed a sediment flux record for the last 1,000 years in order to see how the permafrost responds to climate change. (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)