Add Yahoo as a preferred source to see more of our stories on Google. Arctic rivers flowing through Alaska are increasingly turning orange as wildfires, thawing permafrost and other factors contribute ...

In the northern Alaskan wilderness, a bizarre symptom of climate change is emerging: The rivers there are turning unnaturally orange. This phenomenon paints a worrisome picture for watersheds all ...

Over the past decade, an increasing number of orange rivers and streams have been found in Arctic Alaska’s Brooks Range. These waters tend to be more acidic, turbid, and have higher concentrations of ...

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 ...

A new study found that 75 streams in Alaska’s Brooks Range have turned orange due to thawing permafrost, which releases metals like iron, aluminum and cadmium that exceed U.S. Environmental Protection ...

The orange tributary of the Kugororuk River in Alaska is an example of a "rusting river." These rivers are increasingly common in the Brooks Range of northern Alaska, the result of thawing permafrost.