Americans swelter in extreme temperatures amid persistent heat wave expected to shatter records

Security staff members cool off near cooling fans at Allegiant Stadium in Las Vegas on July 6, 2024 during a record-breaking heatwave in the US. The administration of US President Joe Biden on July 2, proposed new regulations aimed at protecting laborers working in extremely high temperatures, as heat waves intensified by climate change increasingly blanket the nation. The rule would be aimed at mail carriers, delivery people, construction workers, landscapers, restaurant staff and others exposed to consistently high heat indexes, which measures how the temperature actually feels to humans. (Photo by Frederic J. BROWN / AFP)