The great water heist

Climate Central: This snowman, comprised of clean snow, will melt much slower than one speckled with dust. Rust-colored dust blown toward the Colorado River Basin has been causing snow in the region to melt much earlier than it did in the 1850s. Credit: brettski/flickr Picture two snowmen standing side by side beneath a spring sun. One is pristine white, the other has been coated with rusty brown dust. As the day wears on, a pool of water collects beneath the dusty snowman. He will dissolve long before the untarnished......

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