A wildfire in Portugal has killed at least 64 people since it began on Saturday. Above, a charred forest near Pedrogao Grande on Tuesday. Miguel Riopa/AFP/Getty Images hide caption

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Miguel Riopa/AFP/Getty Images

A flower shoots through a landscape razed by wildfires in Cauquenes, Chile, on Feb. 2. Chile's president has lifted a state of emergency and says the wildfires that destroyed large swaths of the country are mostly under control. Esteban Felix/AP hide caption

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Esteban Felix/AP

The wildfire continues to burn in the Great Smoky Mountains National Park in eastern Tennessee on Tuesday. Great Smoky Mountains National Park hide caption

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Great Smoky Mountains National Park

Firefighter David Yowell mops up hot spots in Sunshine Canyon, west of Boulder, Colo., on Sept. 10, 2010. Jae C. Hong/AP hide caption

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Jae C. Hong/AP

In Wildfires, Big Flames Attract Attention, But Watch Out For The Embers

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Fire crews made significant progress Wednesday in containing the Pilot Fire in California's San Bernardino Mountains. It's one of three major fires currently burning in the state. Mark Boster/LA Times via Getty Images hide caption

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Mark Boster/LA Times via Getty Images

Firefighters battle part of the Sand Fire after flames jumped across a road in Santa Clarita, Calif., on Sunday. As the blaze changed direction multiple times over the weekend firefighters were forced to retreat and thousands of people have been evacuated from their homes. David McNew/Getty Images hide caption

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David McNew/Getty Images

Students from Fort McMurray Composite High School are released early as wildfire burns nearby in Fort McMurray, Alberta, Canada on Tuesday. An uncontrolled wildfire burning near Fort McMurray in northern Alberta, the heart of Canada's oil sands region, has forced the evacuation of nearly all the city's 80,000 residents, local authorities said on Tuesday. Courtesy Kangeun Lee via Reuters hide caption

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Courtesy Kangeun Lee via Reuters

An airplane used to fight wildfires flies over a blaze that flared up near Omak, Wash., on Thursday. Ted S. Warren/AP hide caption

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Ted S. Warren/AP

Worsening Wildfire Seasons Tax The Forest Service

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Cattle rancher Craig Vejraska pours out feed while checking on his cattle in a smokey field in Cox Meadow, as the Okanogan Complex fires burn outside Omak, Wash., Aug. 26, 2015. Ian C. Bates for NPR hide caption

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Ian C. Bates for NPR

In A Remote Part Of Washington, A Scramble To Save Cattle From Flames

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