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Pristine Antarctic ice cores could provide insight on climate change

In this photo taken last month, scientist Nancy Bertler holds the final section of ice she collected from a half-mile under Antarctica’s surface in a laboratory freezer, near Wellington, New Zealand. (Nick Perry/The Associated Press)
In this photo taken last month, scientist Nancy Bertler holds the final section of ice she collected from a half-mile under Antarctica’s surface in a laboratory freezer, near Wellington, New Zealand. (Nick Perry/The Associated Press)
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WELLINGTON, New Zealand — Nancy Bertler and her team took a freezer to the coldest place on Earth, endured weeks of primitive living and risked spending the winter in Antarctic darkness, to go get ice — ice that records our climate’s past and could point to its future. They drilled out hundreds of ice cores, each slightly longer and wider than a baseball bat, from the half-mile-thick ice covering Antarctica’s Roosevelt Island. The cores, which ...


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