The July 2026 Wildfires in Canada and Their Transboundary Smoke Problem
This Incident Brief examines the rapid escalation of Canada’s 2026 wildfire season and its transboundary smoke impacts. After a slow start, wildfire activity surged following the late-June North American Heat Dome. By 21 July, 3,915 fires had burned nearly 3.04 million hectares, with Ontario experiencing particularly s...