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Muir Glacier, Alaska, August 13, 1941, photo by B.F.. Molnia

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Muir Glacier, Alaska, August 13, 1941, photo by B.F.. Molnia

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  1. Are glaciers changing? Yes. Over the last century, and over the last few decades, essentially every glacier on the planet has gotten smaller. Over shorter times, the “fun things” glaciers do (surges, kinematic waves, etc.) have caused some to grow while others shrank, but overall shrinkage is strong. Here are some photo pairs, historical and more recent, assembled by Bruce Molnia of the United States Geological Survey, and archived at the National Snow and Ice Data Center, www.nsidc.org The lenses used are not always identical, but the photos are taken as nearly as possible from the same spot, and you should be able to see the changes clearly.

  2. Muir Glacier, Alaska, August 13, 1941, photo by B.F.. Molnia

  3. Muir Glacier, Alaska, August 31, 2004, photo by W.O. Field

  4. Holgate Glacier, AK, July 24, 1909, photo by U.S. Grant

  5. Holgate Glacier, AK, Aug. 13, 2004, photo by B.F. Molnia

  6. McCarty Glacier, AK, July 30, 1909, photo by U.S. Grant

  7. McCarty Glacier, AK, Aug. 11, 2004, photo by B.F. Molnia

  8. McCarty Glacier, AK, Aug. ??, 1906, photo by C.W. Wright

  9. McCarty Glacier, AK, June 21, 2004, photo by B.F. Molnia

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