By Stephanie Sy Hundreds of wildfires continue to burn across Canada and many of them are out of control. The smoke is putting millions of Americans under air quality alerts, prompting warnings to stay indoors to avoid exposure to pollution. Stephanie Sy reports.  Read the Full Transcript Watch the Full EpisodePBS NewsHour from Jun 07, … Continue reading “Canadian wildfires blanket eastern U.S. with smoke, causing poor air quality for millions”, PBS NewsHour