Large-scale and intense wildfires carrying smoke across northern hemisphere

A wildfire near Ashcroft, British Columbia, on 20 July. The province had total carbon emissions of 11.1 megatonnes across June and July, which were increased by fires. Photograph: Jesse Winter/Reuters

The northern hemisphere has had a large number of intense wildfires in the first half of summer, carrying vast amounts of smoke across Eurasia and North America.

Research by the Copernicus Atmosphere Monitoring Service (Cams) showed large-scale and intense wildfires had been developing throughout the late spring and summer, with numerous fires burning in Canada, Alaska and eastern Russia.