DeForest Mapp, Special to USA TODAY Published 6:00 a.m. ET July 16, 2019 | Updated 6:57 p.m. ET July 16, 2019 Don't suffer from the heat this summer. A/C experts from Phoenix, Arizona share their top tips to keep your home cool. USA TODAY Brutal heat has been beating down on the U.S., and across the globe, with high temperatures reaching above 90 degrees -- and in some cases over 100 -- recently in cities like Phoenix and Las Vegas, and Beijing.