A new study found that access to air-conditioning is a stronger predictor of emergency department visits related to PM2.5 exposure from smoke than factors such as race, age, and socioeconomic status.

When it comes to purchasing a used car, German engineering often tops the list for those who want luxury and performance, but ...

The first heat pumps to pass the U.S. Department of Energy's Cold Climate Heat Pump Challenge might be in customers' homes by the end of the year.