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When permafrost thaw turns Arctic Alaska river red, toxicity levels rise, scientists find

Posted 9/29/25

When scientists Patrick Sullivan and Roman Dial were heading to a remote area in the Brooks Range in 2019 to map the spread of woody plants there, they were looking forward to seeing a celebrated river that author John McPhee described decades ago as having the “clearest, purest water I have ever seen flowing over […]

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