“Electric utilities, conservation groups unite to seek solutions for Columbia River Basin dams” Bill Arthur and Debra Smith, Seattle Times, 4/17/20
Six leaders of Northwest electric utilities and conservation groups, including Snohomish PUD CEO/GM John Haarlow, signed on to an Op-Ed promoting collaboration on managing dams on the Columbia and Snake rivers in the wake of the recently released draft Environmental Impact Study.
"Stop Wasting America’s Hydropower Potential" Lisa Murkowski and Jay Faison, New York Times, 1/14/16
Researchers at Washington State University reported that reservoirs of all kinds are sources of methane, a potent greenhouse gas. One of the main reasons cited was the way some dams trap organic materials, which provide food for microbes – and more methane, in turn, is produced by the microbes.
However, the federal hydropower system on the Columbia and Snake rivers does not possess the characteristics or conditions for methane production. The reservoirs do not have large amounts of plant or biomass present or flowing into them which creates methane, the waters are not stratified or eutrophic and circulate regularly; and they contain high levels of dissolved oxygen.
For additional background: