A haze of wildfire smoke engulfed Toronto on Monday morning, pushing the city's air quality to some of the worst on the globe and triggering a warning from the government's climate agency. Wildfire smoke from northern Ontario has descended on the province's economic heart, and Environment and Climate Change Canada (ECCC) responded with an air quality warning for Toronto issued early Monday morning. ECCC warns that wildfire smoke is "causing the air quality to deteriorate significantly," adding that "poor air quality may persist through the day and possibly into Tuesday for some areas." Only Baghdad, Iraq, ranked ahead of Toronto on Monday morning with a "very unhealthy" air quality of 245. Toronto's air quality ranks just ahead of Kinshasa, Democratic Republic of Congo at the time of publication.