Aristotle first spotted 'blood snow' on Mount Olympus. Today, photos show that colorful algae may be eating away Earth's glaciers.

Jan 7 2023 by Business Insider

 
Blooms of colorful algae on glaciers in the Alps, Antarctica, and Greenland.

Miguel Medina/AFP/Getty Images; Dr. Matt Davey; Rey Mourot

Photos show colorful algae blooms are turning glaciers pink, purple, and green across the planet. Aristotle first wrote about "blood snow." The glacier algae is probably a vestige of the Ice Age. But scientists think the algae blooms are growing and speeding up glacier melt as the planet warms. You might think of glaciers as vast fields of white snow. But some...
Continue Reading Aristotle first spotted 'blood snow' on Mount Olympus. Today, photos show that colorful algae may be eating away Earth's glaciers.