According to the WTO in June 2019 arctic wildfires emitted 50 megatonnes (55 million short tons; 49 million long tons) of CO2. This was more than between 2010 and 2018 combined. Most carbon release was from Alaska and Siberia, but also included other arctic areas e.g. in Canada. In Siberia the temperature was about 10 °C (18 °F) higher in June 2019 than the average. In Anchorage, Alaska, on 4 July 2019, the temperature was 32 °C (90 °F), setting a new all-time record high temperature for the town.
From 2007 to 2017, wildfires burned an average of 6.2 and 6.6 million acres (2.5 and 2.7 million ha) per year in the U.S. and Canada, respectively.
† Indicates a currently burning fire