Japanese ice cores go back million years

Scientists in Japan are studying ice core samples pulled from 2 miles deep in Antarctica and believed to be the oldest ever retrieved.

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<p><a href="http://www.physorg.com/news64676216.html">Japanese ice cores go back million years</a></p> <p>Scientists in Japan are studying ice core samples pulled from 2 miles deep in Antarctica and believed to be the oldest ever retrieved. </p>