NEW YORK — When a heat wave hits, millions of air conditioners switch on at once, straining the electric grid and driving up the risk of outages —...

The devices, about the size of a microwave, charge when electricity demand is low....

The devices, about the size of a microwave, charge when electricity demand is low. ......

Highlights: Pregnancy increases vulnerability to dehydration, fatigue , and heat stress during summer Proper

When a heat wave hits, millions of air conditioners switch on at once, straining the electric grid and driving up the risk of outages — and...

NEW YORK (AP) — When a heat wave hits, millions of air conditioners switch on at once, straining the electric grid and driving up the risk of...

NEW YORK (AP) — When a heat wave hits, millions of air conditioners switch on at once, straining the electric grid and driving up the risk of...

The Home Minister...

Summer won’t go away. The afternoon clouds and cooling rains have been few. We are a third of the way through May, and Green Season has yet to step...

Gavianne Sommer Viar cranked her hand-held fan to its highest setting as she tried to listen to a university lecture. It was another sweltering...