EPA says greenhouse gases endanger human health

(AP) -- The Environmental Protection Agency took a major step Monday toward regulating greenhouses gases, concluding that climate changing pollution threatens the public health and the environment.

'Miracle tree' may form basis for low-cost water purification

The moringa oleifera tree, often called the "miracle tree" for its potential to provide food, fuel and water in harsh environments, is the target of a new effort by three Penn State engineers to provide clean drinking water ...

Research targets PFOA threat to drinking water

A highly toxic water pollutant, known as perfluorooctanoic acid (PFOA), last year caused a number of U.S. communities to close their drinking water supplies. Because of its historical use in Teflon production and other industrial ...

page 28 from 40