Quebec Wildfires Contribute to Extreme Fire Season in Canada

More than 400 active wildfires were burning across Canada on Wednesday,

, exacerbating a wildfire season that has forced the evacuation of tens of thousands of people, created a sense of anxiety across the sprawling country and triggered air quality alerts hundreds of miles south in the United States.

The danger of wildfires, which over the past few weeks have stretched from British Columbia on the west coast to Nova Scotia, nearly 2,900 miles away in the east, was…