Mine waste dams threaten the environment, even when they don't fail

Dams built to hold enormous quantities of toxic mining waste have a long history of spills. Decisions in the Pacific Northwest threaten three free-flowing rivers there.

Julian D. Olden, Professor of Aquatic and Fishery Sciences, University of Washington • conversation
Feb. 24, 2020 • ~9 min

Air pollution kills thousands of Americans every year – here's a low-cost strategy to reduce the toll

A new study takes an innovative approach to reducing fine particle air pollution and spotlights key sources: factories that burn coal and oil, petrochemical plants and burning wood for home heating.

Yang Ou, Postdoctoral Associate, Pacific Northwest National Laboratory • conversation
Feb. 21, 2020 • ~9 min

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