Wildfire warnings were issued across the Mediterranean, as temperatures soar to 40C in parts of Spain, Italy and Greece.

More than 160 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...

The heat wave caused disruptions to public transport across the Northeast. Amtrak said it will be forced to slow train speeds ...

Experts have warned that there is signifcant risk of wildfires in several countries, as temperatures may rise 10–15 degress ...

A long-lasting extreme heat wave reached its dangerous crescendo Tuesday, bringing the hottest day in a decade to some major ...

Households across the country are looking for ways to stay cool as the temperatures creep into the high 20s, but there are ...

Hot weather on Wednesday means the Philadelphia region could break another temperature record as this heat wave continues ...

Ozone: Summer days tend to see higher concentrations of this gas, which is harmful when it forms near the ground. Hot and sunny conditions accelerate that process. Ground-level ozone irritates the ...