Alaska's orange rivers are more metallic than acid mine drainage

PHYSorg
Sep 24, 2026, 11:08 am101 pts
The bright orange plumes of water scientists first noticed billowing across a river in Alaska's Brooks Range in 2018 were even more acidic and metallic than water leached from metal mines, despite their pristine surroundings. That's according to a new University of California, Davis, study of six affected…

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