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Benny Hopson from the Barrow Arctic Science Consortium in Alaska drills a core sample from sea ice in the Chukchi Sea on July 4, 2010. Original from NASA. Digitally enhanced by rawpixel.

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Benny Hopson from the Barrow Arctic Science Consortium in Alaska drills a core sample from sea ice in the Chukchi Sea on July 4, 2010. Original from NASA. Digitally enhanced by rawpixel.

More