U.S. Rivers and Streams Super-Saturated With Carbon Dioxide

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Have Floods Changed with Increasing CO2 Levels?

Only one of four large regions of the United States showed a significant relationship between carbon dioxide (CO₂) in the atmosphere and the size of floods over the last 100 years. This was in the southwestern region, where floods have become smaller as CO₂ has increased.

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Secretary Salazar announces the locations for the final three DOI Climate Science Centers -- in the Northeast, South Central and Pacific Islands regions.

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New USGS Water Quality Findings: Major Sources and Losses of Nutrients in the Missouri River Basin Portion of the U.S.

New USGS findings released in the Journal of the American Water Resources Association,accessible at: http://water.usgs.gov/nawqa/sparrow/mrb/4.html

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