A major federal response to occupational extreme heat is here at last

The summer of 2021 was devilishly hot across much of the U.S. Just five minutes in an attic guest room with no air conditioning could be enough to leave a person drenched in sweat and lightheaded, as one of us discovered during a heat wave in Washington state. It’s the kind of heat where it’s impossible to move, to think, to do anything.