Astrophysicist Katie Mack is arguing that labeling the fires by nationality obscures a major driver — climate change is turning Canadian forests into more massive, uncontrollable fire zones. Scientists broadly agree: hotter, drier conditions and longer fire seasons tied to warming have significantly increased how often fires burn intensely and spread widely, producing smoke that has choked millions across the US Northeast and Midwest. That said, wildfires remain shaped by multiple factors beyond climate, including ignition sources, land use, and forest management practices. What the post leaves out is the political fallout — Trump has threatened new tariffs on Canada over the smoke, while PM Mark Carney has pushed back that both countries share responsibility for the underlying climate problem.