The writer John McPhee once described Alaska’s Salmon River as having “the clearest, purest water” he’d ever seen. Today, ...

Warming soil releases toxic metals that threaten fish and disrupt food chains. In Alaska’s Brooks Range, rivers that were ...

In the wild, remote expanse of northern Alaska, rivers that once shimmered with crystal-clear water are now taking on a ...

A new study reveals how thawing permafrost is transforming dozens of rivers in Alaska, leading to irreversible changes.

Geochemical reactions from thawing permafrost are leaching toxic metals into rivers throughout the Brooks Range in northern ...

The river's muddy waters contain levels of metals higher than the EPA's safe limits for aquatic life ...

Learn why rivers in northern Alaska are turning orange, causing aquatic ecosystems to become increasingly toxic.

Researchers found that ice can trigger stronger chemical reactions than liquid water, dissolving iron minerals in extreme ...

Warming Arctic permafrost is unlocking toxic metals, turning Alaska’s once-clear rivers into orange, acid-laced streams. The shift, eerily similar to mine pollution but entirely natural, threatens ...

In Alaska's Brooks Range, rivers once clear enough to drink now run orange and hazy with toxic metals. As warming thaws formerly frozen ground, it sets off a chemical chain reaction that is poisoning ...

When John McPhee and his ragtag crew first kayaked into the pristine Alaskan wilderness in 1975, they were awestruck. The author, who chronicled his reconnaissance trip in the literary classic “Coming ...