Extreme heat is holding the economy back. Don't expect federal legislation to help any time soon.

• There are no federal regulations protecting workers in extreme heat.
• Biden announced plans to protect workers last week with more enforcement of heat-safety violations.
• But this kind of legislation takes years to implement, and some states have even reversed similar laws.

Millions of workers in the US have been struggling to do their jobs as the nation experiences a fierce heat wave — and new legislation may not be coming anytime soon.