Red Snow, Green Snow
It's truly spring when those last white drifts go technicolor
By Susan Milius
Microbiologist Brian Duval hates this part, so let’s just deal with the snickering up front. Yes, he studies yellow snow.
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He also studies red, green, and orange snow and would love to examine other colors if he were lucky enough to discover them. His palette comes from springtime blooms of algae that live only in deep, persistent snowfields.