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alaska glacial retreat
Pictures: Gary Braasch |

Alaska's Glacial Retreat
Alaska's glaciers are receding at twice the rate previously thought, according to a study published in the July 19, 2002, issue of the journal Science. These two images show Portage Glacier, near Anchorage, Alaska, in about 1950 and in July 2001. The ice has pulled back nearly out of sight, leaving behind a glacial lake.
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Pictures: Gary Braasch |

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