Alaska’s Arctic Waterways Are Turning a Foreboding Orange 
US Source: wired 12/31/2022
Alaska’s Arctic Waterways Are Turning a Foreboding Orange
Credit: Roman Dial
Dozens of once crystal-clear streams and rivers in Arctic Alaska are now running bright orange and cloudy, and in some cases they are becoming more acidic. This otherwise undeveloped landscape now looks as if an industrial mine has been in operation for decades, and scientists want to know why.
 

Roman Dial, a professor of biology and mathematics at Alaska Pacific University, first noticed the stark water-quality changes while doing field work in the Brooks Range in 2020. He spent a month with a team of six graduate students, and they could not find adequate drinking water. “There’s so many streams that are not just stained, they're so acidic that they curdle your powdered milk,” he said. In others, the water was clear, “but you couldn't drink it because it had a really weird mineral taste and tang.”

 
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