Great blue herons building a nest in the top of a tree in Seattle's Commodore Park, near the Ballard Locks, on Feb. 16, 2022. - Steve Ringman/Seattle Times/TNS
ABOARD THE SOUNDGUARDIAN, Lake Washington — The region's cold, watery heart is nestled between Seattle and the Eastside.
It uniquely supports two major roadways atop floating bridges, has offered beachgoers a summertime respite for decades and is central to the identity of the Seattle area's culture.
But Lake Washington is changing — by over half a degree Fahrenheit each recent decade.
In fact, since 1963, the lake's surface from June to September has warmed about 4.3 degrees, according to data collected and analyzed by King County and the University of Washington.
