uch of the United States felt like a blazing inferno on Wednesday

as record heat attacked the South like a blowtorch

As record heat attacked the South like a blowtorch

Thick smoke from Canadian wildfires blanketed the Great Lakes region

And triple-digit temperatures threatened to wallop California for the first time this year

Scientists said climate change helped shape the weather conditions

That were causing misery and putting lives at risk from Mexico to Canada

There was no disputing the impact: If it wasn’t way too smoky, it was way too hot

“Everybody’s saying, ‘We’re used to the heat, but not to this degree,

Said Mayor Victor Treviño of Laredo, Tex.