EXPLAINER: What is fueling Russia’s ‘unprecedented’ fires?


              FILE - In this Monday, July 19, 2021 file photo, smoke from a forest fire covers Yakustk, the capital of the republic of Sakha also known as Yakutia, Russia Far East. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (AP Photo/Yevgeny Sofroneyev, File)
            
              FILE - In this Sunday, June 13, 2021 file photo, this image taken from video provided by Russian Emergency Ministry Sunday, June 13, 2021 shows a IL-76 aircraft loading with water at an airfield in Irkutsk region, Eastern Siberia, Russia. To eliminate the emergency situation associated with forest fires in the Katangsky region, an Il-76 aircraft of the Ministry of Emergencies of Russia arrived in the Irkutsk region. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (Russian Emergency Ministry Press Service via AP, File)
            
              In this photo taken from video released on Sunday, July 18, 2021 by Russian Emergency Situations Ministry press service, a Russian Emergency Ministry's Beriev multipurpose amphibious aircraft Be-200 drops water during extinguishing a forest fire in the republic of Sakha also knows as Yakutia, Russia Far East. Russia has been plagued by widespread forest fires, blamed on unusually high temperatures and the neglect of fire safety rules, with Sakha-Yakutia in northeastern Siberia being the worst affected region lately. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (Russian Emergency Situations Ministry press service via AP, File)
            
              FILE - In this file photo taken from video released on Sunday, July 18, 2021 by Russian Emergency Situations Ministry press service, a Russian Emergency Ministry's Beriev multipurpose amphibious aircraft Be-200 takes-off to drop water during extinguishing a forest fire in the republic of Sakha also knows as Yakutia, Russia Far East. Russia has been plagued by widespread forest fires, blamed on unusually high temperatures and the neglect of fire safety rules, with Sakha-Yakutia in northeastern Siberia being the worst affected region lately. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (Russian Emergency Situations Ministry press service via AP, File)
            
              FILE - In this Sunday, July 18, 2021 file photo, employees of the Yakutlesresurs rest as they dig a moat to stop a forest fire outside Magaras village 87 km. (61 miles) west of Yakustk, the capital of the republic of Sakha also known as Yakutia, Russia Far East. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (AP Photo/Alexey Vasilyev, File)
            
              FILE - In this Saturday, July 17, 2021 file photo, volunteers douse a forest fire in the republic of Sakha also known as Yakutia, Russia Far East. Russia has been plagued by widespread forest fires, blamed on unusually high temperatures and the neglect of fire safety rules, with Sakha-Yakutia in northeastern Siberia being the worst affected region lately. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (AP Photo/Ivan Nikiforov, File)
            
              FILE - In this Monday, July 19, 2021 file photo, smoke from a forest fire covers Yakustk, the capital of the  republic of Sakha also known as Yakutia, Russia Far East. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (AP Photo/Yevgeny Sofroneyev, File)
            
              FILE - In this Sunday, July 18, 2021 file photo, volunteers and employees of the Yakutlesresurs extinguish a forest fire outside Magaras village 87 km. (61 miles) west of Yakustk, the capital of the republic of Sakha also known as Yakutia, Russia Far East. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (AP Photo/Alexey Vasilyev, File)
            
              FILE - In this Saturday, July 17, 2021 file photo, a volunteer walks to douse a forest fire in the republic of Sakha also known as Yakutia, Russia Far East. Russia has been plagued by widespread forest fires, blamed on unusually high temperatures and the neglect of fire safety rules, with Sakha-Yakutia in northeastern Siberia being the worst affected region lately.Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (AP Photo/Ivan Nikiforov, File)
            
              FILE - In this Wednesday, June 16, 2021 file photo, firefighters work at the scene of forest fire near Andreyevsky village outside Tyumen, western Siberia, Russia. Wildfires in Siberia are releasing record amounts of greenhouse gases, scientists say, contributing to global warming. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (AP Photo/Maksim Slutsky, File)
            
              FILE - In this file photo provided by Russian Emergency Ministry Press Service, a firefighter douses a forest fire in Yakutia region, Russia, Wednesday, July 14, 2021. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (Russian Emergency Ministry Press Service via AP, File)
            
              FILE - In this Saturday, July 17, 2021 file photo, volunteers prepare to douse a forest fire in the republic of Sakha also known as Yakutia, Russia Far East. Russia has been plagued by widespread forest fires, blamed on unusually high temperatures and the neglect of fire safety rules, with Sakha-Yakutia in northeastern Siberia being the worst affected region lately. Each year, thousands of wildfires engulf wide swathes of Russia, destroying forests and shrouding broad territories in acrid smoke. This summer has seen particularly massive fires in Yakutia in northeastern Siberia following unprecedented heat. (AP Photo/Ivan Nikiforov, File)