Heat illness risk among agricultural workers already occur among hotter climates and will increase with climate change. An analysis of heat stroke deaths among agricultural workers in the United States shows that signs of heat strain are often ignored, leading to increased risk of harm. These risks are higher for agricultural workers in the southeast and the southwest United States as these areas have higher average WBGT and are at higher risk for losing safe, workable daylight hours to climate change. A community-based study in Los Angeles County, CA found a significant increase in heat-related ED visits in communities with greater prevalence or residents working in outdoor work including agriculture, after adjusting for age, race, and poverty. Each percentage increase in residents working in agriculture resulted in a 10.9% increase in heat-related ED visits.