Forecast number of outdoor workers affected by a heat index above 100 degrees Fahrenheit annually in the United States by 2050
(in billion person-days per year)
Characteristic
Person-days per year in billions
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Outdoor workers have a much higher risk of dying from heat exposure than the general population. Suppose no decisive actions are taken to reduce global emissions to curb global warming soon. In that case, the number of U.S. outdoor workers exposed to days with a heat index above 100ºF is forecast to increase from *** million people per year historically to about *** billion people per year by midcentury. If action against climate change proceeds slowly, on the other hand, the number of outdoor workers is estimated to increase to some *** billion people per year, a figure roughly ** percent lower in comparison to the no-action scenario.
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Union of Concerned Scientists. (August 13, 2021). Forecast number of outdoor workers affected by a heat index above 100 degrees Fahrenheit annually in the United States by 2050 (in billion person-days per year) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 01, 2026, from /statistics/1293425/forecast-number-of-outdoor-workers-exposed-to-100-degrees-fahrenheit-us/
Union of Concerned Scientists. "Forecast number of outdoor workers affected by a heat index above 100 degrees Fahrenheit annually in the United States by 2050 (in billion person-days per year)." Chart. August 13, 2021. ÌÇÐÄÆƽâ°æ. Accessed August 01, 2026. /statistics/1293425/forecast-number-of-outdoor-workers-exposed-to-100-degrees-fahrenheit-us/
Union of Concerned Scientists. (2021). Forecast number of outdoor workers affected by a heat index above 100 degrees Fahrenheit annually in the United States by 2050 (in billion person-days per year). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 01, 2026. /statistics/1293425/forecast-number-of-outdoor-workers-exposed-to-100-degrees-fahrenheit-us/
Union of Concerned Scientists. "Forecast Number of Outdoor Workers Affected by a Heat Index above 100 Degrees Fahrenheit Annually in The United States by 2050 (in Billion Person-days per Year)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 13 Aug 2021, /statistics/1293425/forecast-number-of-outdoor-workers-exposed-to-100-degrees-fahrenheit-us/
Union of Concerned Scientists, Forecast number of outdoor workers affected by a heat index above 100 degrees Fahrenheit annually in the United States by 2050 (in billion person-days per year) ÌÇÐÄÆƽâ°æ, /statistics/1293425/forecast-number-of-outdoor-workers-exposed-to-100-degrees-fahrenheit-us/ (last visited August 01, 2026)
Forecast number of outdoor workers affected by a heat index above 100 degrees Fahrenheit annually in the United States by 2050 (in billion person-days per year) [Graph], Union of Concerned Scientists, August 13, 2021. [Online]. Available: /statistics/1293425/forecast-number-of-outdoor-workers-exposed-to-100-degrees-fahrenheit-us/
