Rare Care Program Manager Wendy Gibble and a team of biologists, students and citizen scientists from the University of Washington conservation program hope to identify and conserve Washington’s...

Shifting glaciers revealed the North Cascade peak’s origins, forged from three ancient volcanoes that lived and died over the past million years.

In a Crosscut interview, the governor ties his legislative priorities to one question: What kind of Washington do we want to leave for our grandchildren?

Dr. Gwen Shlichta studies cabbage white butterflies to predict how other organisms may adapt to climate change in the future.

Greenschist gets its tint from minerals compressed under the ocean long ago. Now it caps an entire mountaintop in the North Cascades.

Special thanks to Central Washington University as the original...

On the agenda starting Jan. 8: Spending Washington’s carbon tax, tweaking the cap-and-invest program and taking a stab at utility rebates.

A court struck down one California block on natural-gas appliances. But other cities are finding ways to eliminate fossil fuels despite legal hurdles.

Updates to the Fish and Wildlife plan have accrued public critique and ignited tension from outdoor enthusiasts and tribal representatives.

Sedimentary rock usually builds horizontally. So how does Big Four Mountain in Snohomish County have nearly vertical layers?

Birders, hunters and farmers clash over the lesser snow geese and trumpeter and tundra swans that flock to the land in the colder months.