Why is the sky yellow right now? Canada’s wildfire smoke is to blame

• Millions of Americans could see hazy, yellow skies and worsening air quality over the next few days as smoke from hundreds of wildfires burning across Canada spreads across the Midwest , Great Lakes and Northeast.
• Wildfire smoke from over 830 active fires in Canada is spreading across the US, potentially affecting around 100 million Americans in the Midwest, Great Lakes, and Northeast.
• The smoke will first impact the Upper Midwest before moving east, bringing hazy skies and reduced air quality to major cities including New York City, Boston, Philadelphia, Detroit, and Washington D.C.
• Parts of the Upper Midwest could experience "Mars-like" skies and air quality deemed unhealthy for all residents, prompting air quality alerts across several states.
• Health officials recommend precautions such as limiting outdoor activity, keeping windows closed, and using KN95 masks, with relief from rain expected later in the week.

IN FULL

Canada wildfire smoke to spread across the US - here’s what to expect