The water is so hot in Alaska it's killing large numbers of salmon
Alaska has been in the throes of an unprecedented heat wave this summer, and the heat stress is killing salmon in large numbers. Scientists have observed die-offs of several varieties of Alaskan salmon, including sockeye, chum and pink salmon. Stephanie Quinn-Davidson, director of the Yukon Inter-Tribal Fish Commission, told CNN she took a group of scientists on an expedition along Alaska's Koyokuk River at the end of July, after locals alerted her to salmon die-offs on the stream.
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