Projections for 'dangerous' heat stress (IMAGE) University of Washington Caption The top panel shows the historical record for “dangerous” days per year, with a heat index above 103 F. The left column shows the range of dangerously hot days in 2050, with 10 times more “dangerous” days in the southeastern U.S and more than 100 “dangerous” days in parts of South America, Africa, India and Australia. The right column shows the broader range of possibilities for 2100. The bottom right shows the worst-case scenario, with dangerous conditions for much of the year in South America, central Africa and South Asia. (Lower values in sub-Saharan Africa and India are because they experience “extremely dangerous” conditions.) Credit Vargas Zeppetello et al./Communications Earth & Environment Usage Restrictions With credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.