Why water in many Alaska’s rivers is turning orange

NEW DELHI: Thawing permafrost in Alaska is transforming some of the state’s clear waters into a murky, rusty orange hue. As the frozen layer of soil melts, minerals become exposed and seep into the water, according to a study published on May 20 in the journal Nature Communications: Earth and Environment.
“The more we flew around, we started noticing more and more orange rivers and streams,” said study co-author and National Park Service ecologist Jon O’Donnell.“There are certain…