Alaskan salmon are shrinking. Climate change may be to blame. 

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Alaskan salmon are shrinking. Climate change may be to blame. 

A decrease in salmon size could pose a threat to businesses and the Alaskan ecosystem  A new study  in Nature Communications finds that the size of salmon returning to Alaskan rivers from the ocean has declined dramatically over the past 60 years.  Researchers from the University of California, Santa Cruz, and the University of Alaska at Fairbanks analyzed over six decades of data — from 1957 to 2018 — on over 12.5 million fish. The data looked at four different species of salmon: chinook, chum, coho, and sockeye. Salmon are…

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