India will make energy efficiency ratings a must for electric appliances, including air conditioners and refrigerators, from January, stepping up dome...

It's hot out there, but you don't have to trample on the environment to keep cool. Here are some efficient suggestions from Grist to survive the summe...

Plenty of people switching off their units when leaving the apartment or when the temperature is not terribly hot, but there are still many of them carelessly wasting away energy and ozone.

Q. Dear Umbra, I'm a girl trying to make it in a big, hot, airless city -- New York, that is. We're in the middle of a heat wave that will soon end, ...

When it comes to energy consumption and global warming, it would seem that there are at least six hypotheses (most faulty) that would explain the apparent disconnect between common sense and behavior.