How the Elwha dam removals changed the river's mouth

For decades, resource managers agreed that removing the two dams on the Elwha River would be a big win for the watershed as a whole and, in particular, for its anadromous trout and salmon. The dams sat on the river for more ...

US review shows pesticides harm threatened salmon, whales

Federal scientists have determined that a family of widely used pesticides poses a threat to dozens of endangered and threatened species, including Pacific salmon, Atlantic sturgeon and Puget Sound orcas.

Smoke from wildfires can tip air quality to unhealthy levels

Smoke plumes emanating from wildfires are swept high up into the air and spread over thousands of kilometers even days after a fire has been put out. The fine particles and harmful ozone contained in these plumes often have ...

Michigan scrambles to address chemical contaminants in water

While the city of Flint still recovers from a lead-tainted water crisis, Michigan is scrambling to combat potential health risks in other tap water that stem from chemicals long used in firefighting, waterproofing, carpeting ...

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