The riddle of expanding Antarctic sea ice

This year, Antarctic sea ice extent hit record highs as Arctic sea ice logged its 6th lowest year on record. What gives? Scientists say that overall ice growth masks dramatic losses in some parts of Antarctica and dramatic gains in others. Both trends may be related to climate change and its complex effects on Antarctica. Find out more in my story for the Los Angeles Times.

Antarctic sea ice set a record for maximum extent in 2014. (Credit: National Snow and Ice Data Center)
Antarctic sea ice set a record for maximum extent in 2014. (Credit: National Snow and Ice Data Center)
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