U.S. Rivers Need their Water

Submitted by sarah on Thu, 12/09/2010 - 9:37am

The U.S. Geological Survey recently found that 86% of U.S. rivers are not flowing well. Culprits are hydro electic dams, flood control, and irrigation.

http://blogs.nationalgeographic.com/blogs/news/chiefeditor/2010/12/river-flows-usgs-study-postel.html