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Photo contest winners

The University of Wisconsin Department of Atmospheric and Oceanic Sciences just posted their latest photo contest results at  Take a look at all of the great weather photos from this year’s competition.
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Are the clouds in “The Scream” volcanic or nacreous clouds?

The bright orange and pink clouds in Edvard Munch’s “The Scream” have long been thought to be a product of a volcanic eruption, most likely the very large eruption of Krakatoa in 1883.  Volcanic eruptions shoot sulfuric acid droplets and ash high into the atmosphere, producing spectacular sunsets around the…
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