A raging wildfire forced the evacuation late Monday of Jasper National Park in Western Canada, where thousands of people have fled their homes in the past four days because of large blazes.
Canada is anticipating a wildfire season that one government forecast suggested could be worse than last year's, when record-breaking blazes burned millions of acres and blanketed U.S. cities with smoke as far south as Florida.
A team of researchers said last year that climate change has increased the risk of large wildfires in Canada, where the season usually runs from March to October.
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