Humans, microbes (bacteria, viruses, fungi), and plants all react differently to dry ambient conditions. Microbes adapt quickly by shrinking down, forming thicker membranes, and becoming dormant.

Syracuse, N.Y. — Upstate New York is on the brink of a heat wave starting Sunday that is expected to combine record temperatures with ultra-high humidity levels. Not only will the air at times feel ...

An early-season heat dome is building over the Gulf of Mexico and will bring a week of unusual heat and humidity to southern states, from Texas to Florida, and southward into Mexico and the Caribbean.