Tilting of Earth's crust governed the flow of ancient megafloods

As ice sheets began melting at the end of the last ice age, a series of cataclysmic floods called the Missoula megafloods scoured the landscape of eastern Washington, carving long, deep channels and towering cliffs through ...

A watershed study for wetland restoration

Where rivers meet oceans, each cycle of the tide moves water in and out of estuaries. The mixing and mingling of fresh and briny water, combined with seasonal weather, creates a unique environment for ecosystems in coastal ...

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 ...

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