Global Warming
8143200053 © Peter Essick / Aurora Photos
Image ID
8143200053
Copyright
Peter Essick / Aurora Photos
License
Rights Managed
File size
96.5 MB - 7133 x 4727 px (23.78 x 15.76 inch @ 300dpi)
Releases
Not Released
Date Shot
12/01/2004
Caption
Bike Path in Fairbanks where bumps are caused by melting ice wedges in the permafrost. The wedges were caused by cracks which started when the ground was very cold over 10,000 years ago. When melt water gets in the cracks in spring it melts and thaws and the crack widens. This becomes an ice wedge of almost 100 percent ice, the soil is about 50 percent ice. So when they melt the ground drops by different amounts. Riding bike is Michael Romanovsky, 8 his brother Derek, 5, being helped by his mother, Noel.
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