World leaders may face smoke warnings when they gather next week in Alberta as wildfires burned out of control across much of Canada and caused the country's second-worst fire season in decades.

Forecasters warn that hazy, grayish-blue skies could persist for many weeks as fires continue to burn, though most smoke will remain high in the atmosphere.

Wildfire smoke from over 200 Canadian fires is clouding Southeast Michigan skies and worsening air quality across the Midwest. Dr. Omer Awan joins The Metro to discuss the health risks and public health concerns tied to the growing crisis.

Recapping some of the most talked-about news this week from the nation and around the world – in case you missed it.

From mental health impacts to heightened risk of infections, recent studies underscore the myriad ways in which smoke exposure affects our health.

Smoke from Canadian wildfires has caused hazy skies in Rochester, affecting air quality in the area. News10NBC spoke with Dr. Daniel Croft, a pulmonology professor at URMC, about who is most impacted by the smoke.

In the upper Midwest of the United States, Michigan, Wisconsin and Minnesota have issued air quality warnings as smoke from the Prairie wildfires is dragged south by a cold front. Those warnings expanded into the Northeast, causing some hazy skies.

From the Keweenaw Peninsula to the Mackinac Bridge and areas across lower Michigan, blankets of haze from Canadian wildfires could be seen throughout the week.