Canadian wildfire smoke triggers air quality alerts for millions: What to know

Wildfire smoke from Canada and northern Minnesota has blanketed parts of the U.S., triggering air quality alerts for over 100 million Americans and posing serious health risks due to microscopic particles in the atmosphere. These particles can lead to respiratory issues, especially for vulnerable populations. The shifting winds have blanketed major metro areas across the Great Lakes, Northeast, and Mid-Atlantic regions, highlighting the growing impact of climate change on air quality and public health. This situation underscores the need for better environmental monitoring and public health preparedness.