Dozens of rivers and streams in Alaska are turning rusty orange, a likely consequence of thawing permafrost, a new study finds.

The Arctic is the fastest-warming region in the globe, and as the frozen ground below the surface melts, minerals once locked away in that soil are now seeping into waterways.

“It’s an unforeseen impact of climate change that we’re seeing in some of the most pristine rivers in our country,” said Brett Poulin, study author and assistant professor of environmental toxicology at University of California Davis.

The permafrost thaw is exposing minerals to oxygen in a process known as weathering, which increases the acidity of the water and dissolves metals like zinc, copper, cadmium and iron – the most apparent metal that gives the rivers a rusty color visible even from satellite images. The study highlights the potential degradation of drinking water and risk to fisheries in the Arctic.

  • @Cocodapuf
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    -26 months ago

    and iron – the most apparent metal that gives the rivers a rusty color visible even from satellite images.

    In other words, the rusty color is caused by literal rust? Why not just say the rivers are turned orange due to rust in the water? (Or iron oxide if you want to sound fancy)

      • @Cocodapuf
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        46 months ago

        It shouldn’t. Iron is one of the most common elements on earth.

    • @[email protected]
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      fedilink
      36 months ago

      The man died because of a kinetic interaction with a small piece of element 82 (pb if you want to be fancy) vs The man was shot

      The specifics of the mechanism is less important than why it happened.

      • @Cocodapuf
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        16 months ago

        The specifics of the mechanism is less important than why it happened.

        That’s exactly what I’m saying though.

        “The river turned a rusty color” doesn’t really explain anything. I’m not asking for more complexity here, I’m suggesting that less complexity may also be more informative.

    • Pennomi
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      English
      26 months ago

      Because Google penalizes you for being concise. Just vomiting out more words is an easy way to improve your SEO.