'Extreme Heat Belt' To Affect US Region Home To 100 Million People By 2053: Report

According to a new study, an "extreme heat belt," with at least one-day per year when heat index exceeds 125 degrees Fahrenheit (52 degrees Celsius). First Street Foundation conducted the study, which employed a peer-reviewed model developed in collaboration with public. The analysis found temperatures beyond National Weather Service's highest rating, "Extreme Danger," were anticipated to affect 8.1 million people in 2023 and climb to 107 million people by 2053.