"The science behind it is so basic you can see it in daily life," one researcher said. "Warm water drives more evaporation — the bathroom gets much steamier after a hot bath than a cold one." ...

More than 50 million Americans from Texas to Missouri were already under National Weather Service extreme heat warnings or advisories July 20.

Officials in a Texas hill country community pummeled by deadly flooding on July 4 say just three people remain missing, down ...