Watch: Wildfire smoke blankets cities across U.S., Canada

Wildfires in Canada and Minnesota are sending thick smoke across the U.S., affecting air quality in 18 states and prompting health alerts. This haze is visible in several cities, causing significant disruptions and highlighting the urgent need for climate action. The situation underscores the increasing frequency and severity of wildfires due to climate change, which has profound implications for public health and environmental sustainability.