Members of the Scintillating Fire Circus perform as approximately 70,000 people from all over the world gathered for the annual Burning Man arts and music festival in the Black Rock Desert of Nevada, U.S. August 31, 2017. REUTERS/Jim Urquhart FOR USE WITH BURNING MAN RELATED REPORTING ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. NO THIRD PARTY SALES. NOT FOR USE BY REUTERS THIRD PARTY DISTRIBUTORS.