As 2024 winds down and we head into the cold days of winter, the World Meteorological Organization is predicting that 2024 will wind up as the warmest year on record globally.1 The summer of 2024 was the warmest on record in the Northern Hemisphere, averaging 2.74 degrees Fahrenheit above average.2 This is especially concerning because, according to OSHA, heat is the leading cause of death among all weather-related phenomena in the United States.3
The Workers Compensation Research Institute recently released a study finding that excessive heat increases the frequency of injuries both directly and indirectly.4 Direct injuries include heat exhaustion and heat stroke, which can lead to severe injuries including death. Heat indirectly impacts injuries by impairing cognitive ability, reaction time, and workers’ attention which can lead to human error.
Heat-related Injuries
Heat-related injuries could be catastrophic. For example, a 66‑year-old roofer sustained a severe case of heatstroke from working on a roof in 116‑degree heat during the summer in Arizona. As a result, he also sustained an acute kidney injury, myocardial infarction with heart failure, and a hypoxic brain injury. He may likely require 24‑hour attendant care for the remainder of his life.
According to the Bureau of Labor Statistics, 479 workers in the U.S. died from work-related heat exposure from 2011‑2022, and there were 33,890 heat-exposure injuries and illnesses in the same period.5 They believe these figures are underestimated as not all heat-exposure injuries are obvious.
Worksite Standards
Currently, there are no nationwide standards in place to protect workers from the effects of extreme heat. Five states (California, Oregon, Washington, Colorado, and Minnesota) have standards through their state OSHA programs. However, this is likely to change.
On August 30, 2024, OSHA published in the Federal Register of proposed rulemaking “Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings”.6 This proposal requires employers to develop a worksite heat injury and illness prevention plan, identify heat hazards in both indoor and outdoor settings, and implement control measures at both the initial heat trigger of 80° Fahrenheit and the high heat trigger of 90° Fahrenheit. The public comment period is open until December 30, 2024, after which the proposal is expected to be finalized.