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Five years of record warmth intensify Arctic's transformation

Sea ice is the thinnest it's been at any time in the last 30 years, and wild reindeer and caribou populations continue to decline.
  1. Jeremy Rehm
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The Arctic experienced its second-warmest year on record between October 2017 and September 2018, according to the annual Arctic Report Card. And average air temperatures in this frigid region have hit record or near-record levels every year since 2014.

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doi: https://doi.org/10.1038/d41586-018-07733-y

Updates & Corrections

  • Update 11 December 2018: This story has been updated with information on harmful algal blooms and microplastics in the Arctic, as well as comments from Emily Osborne and Donald Perovich.

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