‘Hell’s temperatures’: how Guardian US readers are enduring the heatwave

From Chicago to Alabama, people are staying inside, floating in pools - and worrying about the deepening climate emergency

As searing temperatures and humidity settled in over states reaching from parts of the Gulf coast to the Carolinas, more than 100 million Americans have been warned to stay indoors where possible.

A combination of heat advisories, excessive heart warnings and excessive heat watches were issued by the US National Weather Service prediction center.