It may be hard to believe that spring is here, meaning summer is just around the corner. That annual eventuality generally is welcome news for school children, baseball enthusiasts, and swimmers—but less so for many employers these days. Increasingly, the Occupational Safety and Health Administration (OSHA)—the federal watchdog responsible for ensuring safe and healthful working conditions—has been "raising the heat" on employers when it comes to investigating heat hazards in the workplace during this era of volatile climate change.