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

Absent any improvement to the power infrastructure or the efficiency of air conditioners, researchers say the state could hit this sweltering mark by the early 2030s, when global average ...

It said appropriate uses of air conditioning included to “prevent heatstroke.” Japan’s power supply has been tight since March, when an earthquake in the northeast forced some nuclear power ...