Lytton, B.C., reached Death Valley temperatures and then went up in flames. …But a larger issue looms. Wildfire experts, climatologists and doctors warn that as the climate warms, Canada is headed for record-smashing high temperatures, longer and increasingly intense wildfire seasons, and prolonged periods of smoke exposure. …Already, wildfire seasons in some jurisdictions have become longer. …The area burned by wildfires in Canada has doubled since the early 1970s, said Mike Flannigan, research chair at Thompson Rivers University. …Modest predictive modelling suggests the area burned in Canada will double again by the end of the century. …Not every breath of smoke is created equal, because not all wildfire smoke is created equal. In addition to gases such as carbon dioxide, nitrogen oxides and volatile organic compounds, it’s also full of particulate matter. (to access the full story, a Globe & Mail subscription may be required).