A prolonged heatwave in Siberia is “undoubtedly alarming”, climate scientists have said. The freak temperatures have been linked to wildfires, a huge oil spill and a plague of tree-eating moths.

Wildfires in Russia have burned across a combined area the size of Greece so far in 2020, surpassing official estimates threefold. Experts warn that this year’s blazes could become the most destructive in history.

Latest reports show 27 fires across Krasnoyarsk region covering 8,682 hectares in. Areas potentially threatening settlements. The forest fire situation is most difficult in Siberia and the Far East, in the Sakha region.