Toxic green and black snow falling on Russian towns has sparked mass protests ... In 2016, a lake in Stavropol, south-west Russia turned bright pink after chemicals from a nearby factroy spilled ...

If you were to trek up the Italian Alps right now, you'd find your boots covered in bizarrely pink snow. While it's a beautiful touch that turns the mountaintops into an alien landscape ...

You've heard of white snow, maybe even gray snow, but what about pink snow? High up in the mountains across the U.S., rapid growth of algae, or algal blooms, are turning melting snow pink. They ...

NPR's Ayesha Rascoe asks Western Washington University environmental science professor Robin Kodner about algea that is turning snow pink at high altitudes.

You've heard of white snow, maybe even gray snow, but what about pink snow? High up in the mountains across the U.S., rapid growth of algae, or algal blooms, are turning melting snow pink.

NPR's Ayesha Rascoe asks Western Washington University environmental science professor Robin Kodner about algea that is turning snow pink at high altitudes.

NPR's Ayesha Rascoe asks Western Washington University environmental science professor Robin Kodner about algea that is turning snow pink at high altitudes.