Wildfires in Siberia have been releasing file quantities of greenhouse gases, scientists say, contributing to world warming. The fires, fuelled by abnormally excessive temperatures, have been burning as far north because the Arctic Circle.

BBC Moscow correspondent Steve Rosenberg travelled to the distant Yakutia area, in northeastern Russia, to gauge the results of local weather change, each on native communities and on the planet.

Producer: Will Vernon

Digicam and modifying: Matthew Goddard