Wildfire smoke from Canada continues to waft down to the East Coast, tinting the skies in New York yellow.

Now, lots of kids are at home too. Some public schools in the city were already scheduled to be closed over the next several days, and some private schools closed too. Kids stuck at home might be wondering why the world looks so different outside today — and why it might not be smart to play outside.

Mike Shanahan is a science educator and planetarium director with the Liberty Science Center in New Jersey. He joined WNYC's Michael Hill to talk about the ins and outs of wildfire smoke for all.