People flee after a rejuvenated fire threatened their neighborhood in Valparaiso, Chile, Sunday. More than 10,000 people have been evacuated because of the fire. Martin Bernetti/AFP/Getty Images hide caption

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Crews work a controlled burn in Geneva, Fla., in December. The state's forest service has rolled out a system to track equipment during fires, and hopes it can eventually be used to pinpoint firefighters, too. Joshua C. Cruey/Courtesy of the Orlando Sentinel hide caption

itoggle caption Joshua C. Cruey/Courtesy of the Orlando Sentinel

A general view of play as the Sydney skyline is shrouded in smoke during the Ryobi Cup match between the South Australian Redbacks and the Western Australia Warriors at Drummoyne Oval in Australia. Mark Metcalfe/Getty Images hide caption

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A charred caution sign just outside of California's Yosemite National Park. David McNew /Reuters/Landov hide caption

itoggle caption David McNew /Reuters/Landov

A Colorado-based firefighter monitors a backfire while battling the Rim Fire in Groveland, Calif., on Thursday. The Rim Fire continues to burn out of control and has grown to more than 105,000 acres, officials said Friday. Justin Sullivan/Getty Images hide caption

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Firefighters stand watch near the perimeter of the Elk Complex fire near the small mountain community of Pine, Idaho, on Aug. 12. The lightning-caused fire is one of many burning through states in the Western U.S. AP/U.S. Forest Service hide caption

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On Sunday in Phoenix, the 19 bodies of firefighters killed while battling a wildfire in central Arizona were driven to Prescott, where the "hotshot" team was based. Christian Petersen/Getty Images hide caption

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An aerial tanker drops fire retardant on a wildfire threatening homes near Yarnell, Ariz., on July 1. An elite crew of firefighters was overtaken by the out-of-control blaze on June 30, killing 19 members as they tried to protect themselves from the flames under fire-resistant shields. Chris Carlson/AP hide caption

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Flames from the Doce Fire rise above a hillside in Arizona's Prescott National Forest at dusk on June 18. Todd Tamcsin/American Red Cross via AP hide caption

itoggle caption Todd Tamcsin/American Red Cross via AP

Holding on to each other: Firefighters hug during a memorial service Monday in Prescott, Ariz. They were honoring 19 others who died Sunday. Michael Nelson /EPA/LANDOV hide caption

itoggle caption Michael Nelson /EPA/LANDOV

The Black Forest wildfire is burning near Colorado Springs, Colo. As Thursday dawned it was "zero percent contained," authorities said. Chris Schneider/Getty Images hide caption

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