Climate change, human activity and lightning determine increases in wildfire severity and area burned in North Asia . In North Asia, the extent of fire-affected areas in boreal forest can be millions of hectares in a single extreme fire year  and nearly doubled between 1970 and 1990 . During recent decades, the number, area and frequency of forest fires increased in Putorana Plateau , in larch-dominated forests of Central Siberia and in Siberian forests as a whole. This increase is in line with an increase in the average annual air temperature, air temperature anomalies, droughts and the length of fire season . The number of forest fires and damaged areas in Gangwon Province and the Yeongdong area in the 2000s increased by factors of 1.7 and 5.6, respectively, compared with the 1990s . Climate change is not the sole cause of the increase in forest fire severity . Ignition is often facilitated by lightning , and over 80% of fires in Siberia are likely anthropogenic in origin . Gas field development and Indigenous tundra burning practices that may get out of control contribute to fire frequency in the forest-tundra of West Siberia . Climate change in combination with socioeconomic changes has resulted in an increase in fire severity and area burned in South Siberia, and illegal logging increases fire danger in forest-steppe Scots pine stands .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report