A person walks in snow near the summit [Getty Images]

Piton de la Fournaise, REUNION: A person walks in snow near the summit of the Piton de la Fournaise volcano 10 October 2006 on the Indian Ocean island of Reunion. The rare event is believed to be caused by cold air from Antarctica which which caused a temperature drop of 2 to 3 degrees. AFP PHOTO (Photo credit should read -/AFP via Getty Images)

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