Biologists: Killing hungry sea lions saving endangered fish

A plan to kill California sea lions to save an endangered run of fish on a river that cuts through Portland, Oregon, appears to be working just months after wildlife officials began euthanizing the giant marine mammals, Oregon ...

Deal reached to clean land around 3 US plutonium reactors

A portion of the vast Washington state site where the U.S. government created much of the plutonium for the nation's nuclear arsenal will be scrubbed free of radiation and other pollution under a final plan reached by the ...

Flowing toward cleaner rivers

What does a river researcher look like? The question may conjure images of people leaning over the sides of boats to gather water samples or standing in swirling currents with large nets to catch debris, chest-high waders ...

page 2 from 5