Environmental groups have called on the US Army Corps of Engineers to find emergency methods to prevent massive salmon die-offs in the Columbia and the Pacific Oceans, which are being caused by warming water, in a bid to avoid last year's catastrophe when high water temperatures killed hundreds of thousands of salmon returning from Snake River. They warned that 96% of endangered the Pacific Ocean sock-eye salmon died before ever making it to the Lower Granite Dam in 2015.
Environmental groups have called on the US Army Corps of Engineers to find emergency methods to prevent massive salmon die-offs in the Columbia and Snake Rivers, which are being caused by warming water, in a bid to avoid last year's catastrophe when high water temperatures killed hundreds of thousands of salmon returning from the Pacific Ocean. They warned that 96% of endangered Snake River sock-eye salmon died before ever making it to the Lower Granite Dam in 2015.