A volunteer carries her daughter while cleaning cots for Fort McMurray wildfire evacuees at a hockey rink in Lac La Biche, Alberta, Canada, on Thursday, May 5, 2016. A fire fueled by shifting winds that forced more than 80,000 people to flee their homes and threatened the business district of oil-sands hub Fort McMurray, Canada, raged out of control Wednesday after consuming 80 square kilometers (30 square miles) of land and damaging 1,600 buildings. Photographer: Darryl Dyck/Bloomberg via Getty Images