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State plans to help salmon by regulating federal dams

Jan 31, 2019 - The Seattle Times

Summer temperatures in portions of the Columbia and Snake rivers are up by 1.5 degrees Celsius since 1960 because of the combined effects of climate change and dams, according to a new draft analysis by the U.S. Environmental Protection Agency (EPA).

Temperatures are so high, sometimes exceeding 70 degrees, that they kill migrating salmon.

The state Department of Ecology on Wednesday initiated a public comment period on proposed new regulations on federal dam operations. Ecology's go...