After an official Unusual Mortality Event was declared over, scientists expected the population to rebound. Instead, they're seeing high numbers of strandings.

Seattle, along with other cities, is struggling to balance the need for more housing with the preservation and growth of trees that help address the impacts of climate change.

US Representative Marilyn Strickland, a Democrat from Washington’s 10th congressional district, is asking the Trump administration to reconsider dismantling the USGS Ecosystems Mission Area.

An unusual couple of nesters has attracted the attention of Portland-area birders drawn to a story about the peculiarities of nature.

Julie Leon died of hyperthermia in Seattle on June 28, 2021 — the hottest day in the city's history. A lawsuit claims she was a victim of oil companies' "misrepresentations" about climate change.

For decades, volunteers have been the foundation of efforts to protect Washington's Pacific coast from marine debris. And they're still going.

The state Department of Ecology is proposing updates to regulations that aim to boost sales of zero emissions semi-trucks.

Reduced staff in national parks and forests will likely mean rougher conditions on trails, and longer search and rescue response times. But the public can help out.

Attorneys general from 17 states and D.C. are challenging an executive order Trump signed on his first day in office pausing approvals, permits and loans for all wind energy projects.

Biologists and technicians help burrowing owls get their underground homes ready for the season at the site of the decommissioned Umatilla Chemical Depot in Oregon.