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North Cascades National Park Service Complex
Long Term Trends
After passing through a short period of glacial stability in late 1990’s (Figure 16), it appears our glaciers have resumed a negative long-term trend. Along with research from Portland State University, we used 1998 aerial photos of the park to re-inventory all of the glaciers. This effort revealed a 13% decline in glacier area since the 1971 Post inventory. By mapping the maximum extent of all glaciers as identified by moraines, we estimate that glacier area has declined ~40% in the past 150 years.
 
Figure 16
Figure 16 - Cumulative Balance of NOCA Glaciers
Long horned beetle  

Did You Know?
There are more insects in the Park than any other group of animals; in fact, 95% of all animal species on earth are insects. Take your time to explore the breathtaking world of butterflies, beetles, and bugs.
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Last Updated: June 09, 2008 at 20:07 EST