In this photo taken on Friday, March 8, 2013, scientist Nancy Bertler stands in a laboratory freezer in front of boxes of ice she collected from Antarctica, near Wellington, New Zealand. Antarctica's ... more 
In this photo taken on Friday, March 8, 2013, scientist Nancy Bertler stands in a laboratory freezer in front of boxes of ice she collected from Antarctica, near Wellington, New Zealand. Antarctica's pristine habitat provides a laboratory for scientists studying the effects of climate change. (AP Photo/Nick Perry) less 
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Associated Press | Photo By Nick Perry
Sat, Apr 6, 2013 8:20 AM EDT