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

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

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

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

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

Alaska’s Brooks Range rivers are turning rusty orange due to thawing permafrost releasing toxic metals into the water. This chemical reaction threatens fish, wildlife, and Indigenous communities who ...

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 ...

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

There’s perhaps no better way to spend fall in Alaska than by exploring the state’s national parks-especially if they include ...