Concrete, pavement making Tucson hotter - and experts say it's getting worse Print Email Infrared satellite imagery from May 11, 2005, shows the pattern of Tucson heat at about 10:30 p.m. Lighter tones are hottest, and darker ones the coolest. November 18, 2012 12:00 am • COURTESY OF IRENE OGATA, CITY OF TUCSON Comments Join Discussion Related Stories Concrete, pavement making Tucson hotter - and experts say it's getting worse More Environment stories Fire restrictions start Wednesday in most forests Fluoride vote splits cohesive Portland liberals Rocking K closer to development; smaller-scale project will start contruction within two years Wild turkey flock released to roam on Mount Lemmon