Environment
Invasive hornet first found in Washington eradicated from U.S.
Five years after first being spotted near Blaine, the northern giant hornet has been eradicated from Washington and the U.
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Environment
How damming the Columbia River transformed Central Washington
The river's dams drive electricity, flood control and commercial ships, and also helped turn the desert east of the Cascades into fruitful land.
Environment
Nick on the Rocks: How were the Potholes Coulee canyons created?
North of Washington’s Gorge Amphitheatre are two massive lake-filled canyons, and geologists have chased clues about their origins for centuries.
Environment
Dueling lawsuits fuel debate over WA natural gas initiative
Voters passed Initiative 2066 in November, but opponents, including King County and the city of Seattle, allege it violates the state constitution.
Environment
Nick on the Rocks: Volcanic mud blooms tulips in the Skagit Flats
The famous flower fields are connected to mudflows that spilled from Washington’s Glacier Peak less than 15,000 years ago. Could it erupt again?