Vinisha Umashankar came up with the idea of solar power instead of charcoal to heat street irons. "Iron-Max" was a finalist for Prince William's Earthshot Prize, and this week, she spoke at COP26.

With two-thirds of U.S. adults owning a grill or smoker and 68% of them planning a July Fourth cookout, the time is ripe to highlight grilling safety. Follow these tips for a safe, fun weekend.