For the past few years, several rivers in Alaska have turned a bright orange, visible from space. This unusual coloration is due to the release of toxic metals into the waterways, a phenomenon ...

Some streams and rivers in Alaska’s remote Brooks Mountain Range are turning orange. Researchers think melting permafrost may be the culprit. Credit: Josh Koch/USGS ...

Home > Science Melting Permafrost Is Dumping Toxic Metal Into Alaska's Rivers The metal doesn't just turn the water highly acidic—it also colors it bright orange, making them visible from space.

An aerial view of the Kutuk River in Alaska's Gates of the Arctic National Park, where a portion of the water is rust-stained. Ken Hill/ National Park Service ...

Remote rivers and streams in northern Alaska’s Brooks Range are undergoing a dramatic transformation, changing from their characteristic crystal clear blue to a murky orange hue.

Global warming is thawing permafrost in Alaska and turning remote rivers from pristine glacier blue to rusty bright orange.

Climate change is probably causing dozens of rivers in Alaska to flow orange, and it could have disastrous, cascading consequences on the state’s ecology and rural communities, researchers said ...

In another unusual phenomenon, rivers and streams in Alaska are turning from a clear blue to a rusty orange colour, primarily due to the toxic metals released by thawing permafrost, according to a ...