Burners were forced to endure hours of torrential rains before tens of thousands bailed on the festival. Scientists warn that such large bursts of showers are a result of a warming planet.
Organizers had asked attendees to shelter in place on Saturday, as torrential rains turned the desert site into a mud pit. A driving ban has since been lifted, but exiting is still a trek.
Organizers of the Burning Man festival lifted a driving ban on Monday as muddy roads that had stranded thousands of attendees in the Nevada desert had dried up enough to allow people to begin leaving.