As summer temperatures across the Southeast continue to rise as they have since the 1970s, exposure of outdoor workers to conditions favorable for heat stress is also increasing.  If you have workers that spend a lot of time out in the heat, you are most likely already encouraging them to take breaks in the shade, drink a lot of water, and watch carefully for signs of heat-related problems. Fortunately, the daytime maximum temperatures are not increasing as fast as nighttime low temperatures, but there are still many chances for farm workers to suffer from problems due to excess heat.  You can read more at  https://www.yaleclimateconnections.org/2017/06/as-summer-days-grow-hotter-risks-grow-for-farmworkers/ or read about heat stress at the Centers for Disease Control at https://www.cdc.gov/niosh/topics/heatstress/.