The Weirdest Reason the Poles Are Warming So Fast? Invisible Clouds
In the Arctic and Antarctica, PSCs appear anywhere between 15 and 25 kilometers (9.3 and 15.5 miles) in the sky during cold winter conditions. They’re most often invisible, but they can be sighted when the sun is angled just right. In these cases, they’re known as mother-of-pearl clouds, on account of their wild coloration: swirls […]
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