excessive heat-warning

A derecho has the US hot and bothered – here's what it is

At least 28 dead due to extreme heat in past week in US, mostly in Calif

European heatwave has killed 1,700 people and just melted an airport tarmac

Ask the Expert: What can we expect from our overworked air conditioners?

Newsom announces Extreme Heat Action plan to prepare, protect Californians

Death Valley's weekend heat could break records

Hundreds of deaths could be result of heatwave in Pacific Northwest At least 486 people have died in British Columbia since Friday afternoon, officials said.