Climate, not Canada: scientists rebut Trump on wildfire smoke

Scientists criticized Donald Trump’s claim that Canadian wildfires are poisoning U.S. air and his threats of tariffs, arguing the fires are driven primarily by a warming climate and forest conditions rather than Canada’s actions. The cross-border smoke highlights the global nature of climate-driven fires, and experts say punishing Canada won’t solve the problem; officials emphasize reducing fossil fuel emissions and adapting to a changing climate as the real path forward.