News & Stories Science Uncovering the mystery of how algae makes snow green, red or orange Nell Greenfieldboyce December 25, 2025 / 2:21 pm Snow isn't always white; algae can make it look green, red, or orange, and scientists are trying to understand how and why these colorful patches appear. Why you can trust KUOW Recommended Stories What does UW's disappearing research money mean for Seattle's innovation economy? April 24, 2026 Every tire produces a chemical that kills coho salmon. Can scientists pump the brakes? April 10, 2026 Bee survey finds dozens of species new to Washington state March 25, 2026
Every tire produces a chemical that kills coho salmon. Can scientists pump the brakes? April 10, 2026
