"Study Says U.S. Waterways Are Warming"

"Many streams and rivers in the United States are getting warmer, with the greatest increases in urbanized areas, according to research to be published in an upcoming edition of the journal Frontiers of the Ecology and the Environment.

Twenty major streams and rivers, including the Colorado, Potomac, Delaware and Hudson Rivers, are warming at statistically significant rates, the study found.

Increases in water temperature were often directly correlated to increases in air temperature and high levels of urbanization, said Sujay Kaushal, the paper’s lead author and a professor at University of Maryland’s Center for Environmental Science."

Sindya N. Bhanoo reports for Green Inc. in the New York Times April 6, 2010.