Scientists trying to figure out why Earth has been so hot for the past 2 years ...

These are scenes local tribes have dreamed of seeing for decades as they fought to bring down four hydroelectric dams ...

In a historic turn, the removal of four dams has allowed Chinook salmon to return to the Klamath River after generations.

King salmon have sustained people in Alaska for at least 12,000 years, but over the past three decades their populations have ...

The wild Atlantic salmon, kingpin and ‘natural royalty’ of the river, is officially an endangered species in Britain. Stocks ...