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In 536 AD, the sun went dark and red rain poured from the skies. Here is the harrowing story of the volcanic winter of 536 AD.Microsoft and our third-party vendors use cookies to store and access information such as unique IDs to deliver, maintain and improve our services and ads. If you agree, MSN and Microsoft Bing ...
Forbes contributors publish independent expert analyses and insights. I write about the world of biology.
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