Here's how to tell whether to go with a window a/c, portable unit, a ductless mini-spit, an evaporative cooler—or a combo of several.

This new passive cooling paint reflects sunlight, emits heat and mimics sweating to cool buildings without air conditioning, even in the tropics.

Switching on air-conditioning during extreme heat doesn’t have to make us feel guilty—it can actually boost power grid ...

"Large shopping centers, warehouses, schools" are all potential users of the groundbreaking technology. Scientists develop ...