Note: Shaded counties are those that will, on average, have 0.5 days or more at or above a 125F° heat index in 2053; Data: First Street Foundation; Map: Axios Visuals
A new study reveals the emergence of an "extreme heat belt" from Texas to Illinois, where the heat index could reach 125°F at least one day a year by 2053.
The big picture: In just 30 years, climate change will cause the Lower 48 states to be a far hotter and more precarious place to be during the summer.
