The Trailbreaker | Aug 14, 2012 | 6:21

    Tracking an Arctic Cyclone

    Half a million square kilometres of sea ice -- gone in a day. Mark Serreze at Colorado's National Snow and Ice Data Center talks about the role last week's massive cyclone could play in what's already predicted to be a record year for sea ice loss. Hear his conversation with the Trailbreaker's Joslyn Oosenbrug.

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