Canadian Wildfire Smoke Affects Air Quality in the Northeastern US

Canadian wildfire smoke is impacting air quality across the Northeastern and Upper Midwest regions of the United States, with fine particulate matter blanketing these areas. The smoke is attributed to numerous wildfires in Canada and a meteorological phenomenon known as a 'heat dome,' which traps hot air close to the ground. As a result, over 115 million people are exposed to polluted air, prompting health advisories to stay indoors and use air purifiers when possible. The Clean Air Act, enacted 63 years ago, significantly reduced air pollution in the US, but recent increases in pollutants from wildfires highlight ongoing challenges in air quality management. The article also notes that addressing climate change, which contributes to the severity of wildfires, presents complex political issues.