View image in fullscreenVenray, the NetherlandsFirefighters rest after battling a wildfire in the Boschhuizerbergen nature reservePhotograph: Rob Engelaar/EPAShareView image in fullscreenVenray, the NetherlandsPeople watch a Chinook helicopter collect water from the River Meuse as part of efforts to extinguish a wildfire in the Boschhuizerbergen nature reservePhotograph: Sem van der Wal/ANP/AFP/Getty ImagesShareView image in fullscreenPsatha, GreeceA house burned in a wildfire on Kitheronas mountainPhotograph: Louisa Gouliamaki/ReutersShareView image in fullscreenPsatha, GreeceA Chinook helicopter drops water to extinguish wildfire hotspots on Kitheronas mountainPhotograph: