A firefighter walks in a field while smoke from a wildfire cloud the air outside the settlement of Kustarevka in Ryazan region, some 340 km (211 miles) southeast of Moscow August 10, 2010. [Photo/Agencies] 

A firefighter works to extinguish a wildfire outside the settlement of Kustarevka in Ryazan region, some 340 km (211 miles) southeast of Moscow, August 10, 2010. [Photo/Agencies]