Air Quality Alerts Spread To 17 States As Canadian Wildfire Smoke Continues To Pour In Air quality alerts have been issued for 17 US states, a stark reminder that climate change is an immediate reality.
The National Weather Service has warned of hazardous or unhealthy air pollution caused by wildfire smoke pouring in from Canada.
The scale of the Canadian wildfires is staggering: over 850 blazes are burning across the Great White North, with many of the largest in Ontario.