Legacies of racist housing policies haunt American cities with summer heat as much as 12 degrees hotter in formerly redlined neighborhoods compared to wealthier, whiter ones, the New York Times reported. The study, published in the journal MDPI found redlined neighborhoods in more than 100 cities across the country remain lower-income. Those neighborhoods also have fewer trees and parks that cool the air, and more asphalt lots and nearby highways which hold and radiate the sun’s heat. Extreme heat, made worse by climate change, kills as many as 12,000 people per year in the U.S., more than any other weather disaster. (New York Times $; Study: Grist, StateImpact Pennsylvania, Guardian, NPR, The Oregonian; Climate signals background: Heat waves)