October 25th, 2018
(CNN) Machines designed by a California-based team can produce, in some cases, up to 300 gallons of fresh drinking water a day by pulling it straight from the air. And the team just won a $1.5 million prize for it.
The best heat pump brands
Wondering which heat pump is right for your home? Our guide compares leading brands to help you cut energy bills, stay comfortable, and save year-round.
