What Climate Change Means For North Cascade Glaciers
Glaciers set the North Cascades apart. Their runoff allows fish to navigate streams when rainfall is scarce. Their trickle gathers in rivers with currents powerful enough to generate hydroelectricity for millions of residents. But they're not powerful enough to withstand climate change.
Erin Lowery is a fisheries biologist for Seattle City Light. His job is to figure out where salmon are spawning on the Skagit River and then make sure his employers dams release the right amount of water to allow the eggs to incubate safely.