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National (U.S.)

"As Nuclear Reactor Fleet Ages, Engineers Ask,' Is 80 the New 40?'"

"Could nuclear power plants last as long as the Hoover Dam? Increasingly dependable and emitting few greenhouse gases, the U.S. fleet of nuclear power plants will likely run for another 50 or even 70 years before it is retired -- long past the 40-year life span planned decades ago -- according to industry executives, regulators and scientists."

Source: Greenwire, 11/23/2009

"Sewers at Capacity, Waste Poisons Waterways"

Despite tens of billions spent under the 1972 Clean Water Act to upgrade the sewage-handling systems of U.S. cities, many have reached capacity and are unable to handle wet-weather flows. The result is that many are "violating the law by dumping untreated or partly treated human waste, chemicals and other hazardous materials into rivers and lakes."

Source: NYTimes, 11/23/2009

"Fungus Provides Clues To North American Extinctions"

"One of the great mysteries about North America is what killed off woolly mammoths and other exotic animals that roamed the land after the last ice age. Ideas have ranged from a comet impact and climate change to human hunters. A study published Friday in Science Magazine provides new clues about this — cleverly deduced from samples of a fungus that grew on the animals' dung."

Source: NPR, 11/20/2009

"Coal Pollution Undermines America's Health, Physicians Advise"

"Coal pollutants affect all major body organ systems and contribute to four of the five leading causes of mortality in the United States: heart disease, cancer, stroke, and chronic lower respiratory diseases, concludes a scathing report issued today by Physicians for Social Responsibility."

Source: ENS, 11/19/2009

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