wildfire

A longtime exposure shows smolderings remains of overnight fires on the hillsides of San Marcos, San Diego county, California, USA, early 16 May 2014. Over 1,000 firefighters battled a series of fast-moving southern California wildfires on 15 May that spread across the region despite the efforts of more than 20 firefighting aircraft. Huge clouds of black smoke hung over much of San Diego County, where the worst blazes were burning 15 May, driven by the blistering Santa Ana winds, which bring strong, dry gusts out from the interior desert.

Stuart Palley/EPA

Smoldering remains of overnight fires on the hillsides of San Marcos, San Diego county, California, USA, early Friday. Over 1,000 firefighters battled a series of fast-moving southern California wildfires that spread across the region despite the efforts of more than 20 firefighting aircraft.

A wildfire burns in the hills just north of the San Gabriel Valley community of Glendora, Calif., on Thursday, Jan 16, 2014. Southern California authorities have ordered the evacuation of homes at the edge of a fast-moving wildfire burning in the dangerously dry foothills of the San Gabriel Mountains. (AP Photo/Nick Ut)

Nick Ut/AP

A wildfire burns in the hills north of the San Gabriel Valley community of Glendora, California. Authorities have ordered the evacuation of houses at the edge of the foothills of the San Gabriel Mountains Read more

A firefighter fights a forest fire at Ferreira de Aves, in Satao, Portugal on Friday. Some 247 firemen, using 67 land vehicles, and four airplanes, are trying to extinguish the fire.

Nuno Anndre Ferreira/EPA

A firefighter fights a forest fire at Ferreira de Aves, in Satao, Portugal on Friday. Some 247 firemen, using 67 land vehicles and four airplanes, are trying to extinguish the fire.

Members of Civil Defense and forest Brigade of Riveira work at the site of a wildfire in Riveira, near La Coruna on August 28, 2013.

Pedro Amestre/AFP

Civil defence and forest brigade members at the site of a wildfire in Riveira, northwest Spain, on Wednesday.

A woman reacts after a wildfire in Paredes near Oliveira de Frades, central Portugal, on August 27, 2013.

Patricia De Melo/AFP

Firefighters and local residents struggle on Tuesday to tackle raging wildfires that have consumed large swathes of forest in Portugal and Spain and cost the lives of four emergency workers.

Local residents try to extinguish a wild...Local residents try to extinguish a wildfire at Fornelo do Monte near Vouzela, central Portugal, on August 21, 2013. Several hundred firefighters were tackling forest fires raging in the north and centre of the country, backed by two Spanish Canadair planes. Portugal, grappling with a number of wildfires, has sought help from Spain and France. Some 31,000 hectares have been lost to fire in Portugal this year. AFP PHOTO/ FRANCISCO LEONGFRANCISCO LEONG/AFP/Getty Images

Francisco Leon/AFP

Local residents try to extinguish a wildfire at Fornelo do Monte near Vouzela, Portugal, on Wednesday. Several hundred firefighters, backed by two Spanish Canadair planes, were tackling forest fires raging in the north and centre of the country. Portugal has sought help from Spain and France. Some 31,000 hectares have been lost to fire in Portugal this year Read more

Firefighter Jesus Acosta holds a candle during a vigil and memorial gathering at the Prescott High School in Prescott, Arizona on July 2, 2013. Acosta is a volunteer firefighter with the Ash Fork fire department, which is located in Yavapai County, Arizona. The Yarnell Hill fire, which killed all but one member of a 20-strong 'hotshot' team, was the biggest loss of firefighters' lives since the September 11 attacks, and the most from a US wildfire in 80 years.

Krista Kennell/AFP

Firefighter Jesus Acosta holds a candle during a vigil and memorial gathering in Prescott, Arizona, US, for 19 colleagues who died in the Yarnell Hill fire, a wildfire caused by record heat and erratic winds. The victims were members of an elite “hotshot” unit and was the biggest loss of firefighters’ lives since the September 11 attacks and the most from a US wildfire in 80 years

A wildfire burns homes in the Glenn Ilah area near Yarnell, Ariz. on Sunday, June 30, 2013. An Arizona fire chief says the wildfire that killed 19 members of his crew near the town was moving fast and fueled by hot, dry conditions. The fire started with a lightning strike on Friday and spread to 2,000 acres on Sunday amid triple-digit temperatures. (AP Photo/The Arizona Republic, David Kadlubowski)

David Kadlubowski/AP

A wildfire burns homes in the Glenn Ilah area near Yarnell, Arizona in the US. An Arizona fire chief says the wildfire, which killed 19 members of his crew near the town, was moving fast, fueled by hot, dry conditions. Read more

Chris and Christine Walker watch the Black Forest Fire gain steam as it burns out of control for a second straight day near Colorado Springs, Colo.

Bryan Oller/AP

Chris and Christine Walker watch the Black Forest fire gain steam as it burns out of control for a second straight day near Colorado Springs, Colorado

A firefighter monitors a flare up of the Springs Fire at Point Mugu State Park, May 3, 2013. A wind-driven wildfire raging along the California coast north of Los Angeles prompted the evacuation of hundreds of homes and a university campus on Thursday as flames engulfed several farm buildings and recreational vehicles near threatened neighborhoods.

Jonathan Alcorn/Reuters

A firefighter monitors a flare up of the Springs Fire at Point Mugu State Park on Friday morning. A wind-driven wild fire raging along the California coast north of Los Angeles prompted the evacuation of hundreds of homes and a university campus on Thursday as flames engulfed several farm buildings and recreational vehicles near threatened neighbourhoods.