We mapped urban heat island intensification in Minneapolis–St. Paul and Chicago with 32 years of Landsat (1984–2016). The pattern is stubborn: land-cover change writes itself into surface temperature, neighborhood by neighborhood, and it compounds. Paper in Geocarto International: https://doi.org/10.1080/10106049.2019.1655802 #UrbanHeatIsland #Landsat #RemoteSensing #ClimateChange #Cities