Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Oceanography Geoscience: Severe Weather
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More frequent atmospheric rivers hinder seasonal recovery of Arctic sea ice      (via sciencedaily.com) 

The Arctic is rapidly losing sea ice, even during winter months when temperatures are below freezing and ice should be recovering from the summer melt. A new study found powerful storms called atmospheric rivers are increasingly reaching the Arctic in winter, slowing sea ice recovery and accounting for a third of all winter sea ice decline, according to a team led by Penn State scientists.