Add Yahoo as a preferred source to see more of our stories on Google. As millions of Americans across the Midwest and the Northeast on Thursday woke up to hazy skies and significant air pollution for ...

Pyrotechnics are fun, and, with the proper precautions taken, safe enough to play with at home (usually). While it’s typical to purchase fireworks and smoke devices off the shelf, it’s actually ...

The smoke plume from the Dixie Fire—the largest single fire in California state history—got so huge it covered five states. It’s mostly contained now, but at its peak, people across some 2,500 square ...