Overview

• Researchers identified over 75 streams in Alaska's Brooks Range affected by the discoloration.
• Thawing permafrost is exposing minerals like iron, zinc, and copper, increasing water acidity.
• The change in water chemistry is similar to acid mine drainage, despite no nearby mining activity.
• The orange streams have led to declines in fish and macroinvertebrate populations.
• Scientists warn the issue could worsen as climate change continues to warm the Arctic.