Lightning, which is more common in hotter temperatures, is usually the cause of wildfires that burn the most land. In 2023, scientists at Canada’s natural resources department found that lightning sparked fires that burned 93 percent of the total wildfire area, and the remaining seven percent of the area burned from human causes.

Millions of Americans remain under air-quality alerts as more than 200 Canadian wildfires continue to rage, many of them out of control, NBC News reported.  What's happening? As of June 3, a total of 212 active fires were burning across Canada,

Canada’s wildfire season is off to an intense start. A NASA satellite has recorded thousands of hot spots across the country — four times the usual number for this time of year.

The premiers of Manitoba and Saskatchewan declared states of emergency in each province as out-of-control fires threatened communities.

Thousands of people have evacuated their homes across parts of the Canadian provinces of Saskatchewan and Manitoba, where officials have declared a state of emergency and crews are working to contain dozens of out-of-control wildfires.