As wildfire smoke becomes an increasingly prevalent urban challenge, communities and policymakers must develop comprehensive ...

Wildfire smoke has caused a spike in related emergency room visits. Here are the cities worst affected by blazes in recent ...

Story continues below photo gallery. A high-pressure system is generating the clockwise winds and smoke pattern, O'Hara said. "Generally with highs, winds turn clockwise and come from the north or ...

They are producing copious amounts of smoke in one of the worst wildfire seasons that Canada has seen. Second, atmospheric wind patterns have been locked in place all week. And they are ...