The buildup of pollutants on windows, roads and other urban structures can be re-released into the environment later, prolonging the damaging effects of wildfires.
The ranking, which evaluated more than 1,700 universities around the world based on their environmental impact, social impact and governance, places McMaster in the top 5 per cent of institutions.
Talk about experiential learning: Eight McMaster students got to design and run a marine conservation experiment at Bamfield Marine Sciences Centre on Vancouver Island.