english: 40 percent of the world's energy is taken up by buildings currently, and 60 percent of the world's population will be living in buildings in cities with a population of over one million in the next 15 years.
non_english: 40 percent svetovej energie je spotrebovanej budovami, a až 60 percent svetovej populácie bude bývať v budovách v mestách s populáciou vyššou ako 1 milión v nasledujúcich 15-tich rokoch.