PubTalk 12/2003 — What's Happening to Alaska's Glaciers?

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Detailed Description

Their Dynamic Response to Changing Climate and Other Factors

by Bruce F. Molnia, Research Geologist 

 

  • Although the oceans contain more than 95% of the Earth.s water, glaciers hold 75% of the fresh water
  • If all the world's glaciers melted, sea level would rise more than 250 feet
  • Of Alaska.s 2,000 or so large glaciers, more than 99% are now retreating or stagnating
  • Photos taken decades apart at Glacier Bay reveal the dynamic evolution of the glacial landscape
  • Why are Alaska's glaciers now contributing more water to raising sea level than Antarctica and other polar areas?

Details

Image Dimensions: 320 x 240

Date Taken:

Length: 01:02:09

Location Taken: Menlo Park, CA, US

Transcript

Contact wmcesic@usgs.gov for transcript.