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The 613-metre ice core from the Müller Ice Cap on Axel Heiberg Island, Nunavut, is the deepest ice core ever extracted in Canada. University of Manitoba handout

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Researchers from the University of Manitoba have extracted what is believed to be the deepest ice core ever in Canadian history.
The 613-metre ice core from the Müller Ice Cap on Axel Heiberg Island, Nunavut, was extracted in 2–3 metre sections over a period of several weeks.