Canada is a large part of North America. Canadian wildfires this year, through September, are at just 8% of the 10-year average. All provinces are well below average. Were meteorological conditions responsible for lots of fires in the US west, and also responsible for very few in Canada?
http://nfdp.ccfm.org/en/data/fires.php
1994, 1995 and 1998 recorded the biggest Canadian wildfire acres burned, but over the full period, there's no obvious trend at all. The claim that hot dry weather conditions are making wildfires more severe and widespread, due to climate change, makes no sense in Canada ... and if that belief makes no sense in Canada, it makes no sense in the U.S. too. If climate change causes wildfires, what causes the Canadian decline in the number and area burned? In Canada's Northwest Territories, the last 4 of 5 years have been far below average for both the number of wildfires, and area burned. This year was one of the lowest.
Does global warming stop at the Canadian border? In fact, large fires are episodic, and have no relevance to trends. However, this will not stop the climate change howlers.