Nayeli Clemente, a 24-year-old athlete and physical therapist, died on May 2 after collapsing during a high-intensity endurance event in 96-degree heat in San Andrés Cholula, Mexico. The event, known ...

Last month was the second-warmest April globally, with the past 12 months being 1.58 degrees Celsius warmer than at the start of the industrial revolution, according to European climate agency ...

Imagine standing outside before sunrise when a typical humid morning in the 70s briefly turns into a windy blast of dry heat in the 90s. That's what happened in an Oklahoma town Sunday morning from an ...