Wildfires across Canada have caused severe air quality issues, with Toronto recording the worst air pollution in the world.Over 1.9 million hectares of land have been burned, prompting evacuations and health warnings.

Smoke from the fires has spread to major cities in Canada and the US, including New York and Chicago, affecting the FIFA World Cup final scheduled for early next week.Canadian authorities are battling 110 active blazes, with over 700 fires still burning in remote areas.The smoke has led to cancelled events, closed public pools, and health advisories.While the fires are not directly threatening major cities, they are encroaching on smaller towns.The situation is exacerbated by a record-breaking heatwave, though officials note the current fire season is less severe than 2023.The smoke is expected to linger into the week, with potential impacts on the World Cup final in New Jersey and surrounding areas.