Chicago faces an air quality alert due to Canadian wildfire smoke and high ozone levels, with risks for sensitive groups.

We’re more than two-thirds of the way through Chicago’s meteorological summer, and so far when the weather hasn’t been suffocatingly hot and humid, it’s featured air that’s dangerous for too many of ...

Iberia flight IB-579 had just taken off from Adolfo Suárez Madrid-Barjas Airport in Madrid Sunday when a large bird obliterated the plane’s nose, forcing it to turn around and make an emergency ...