Builder
Air conditioning units are harmful to the environment, according to a new report. The number of AC units may swell from 1.2 billion worldwide today to 4.5 billion by 2050–and household air conditioning, alone, could push global warming up half a degree by the end of the century, the Global Cooling Challenge Report states.
So, entrepreneur Richard Branson launched both the report and the Global Cooling Prize, a $3 million competition to spur new technology.
Fast Company writer Adele Peters writes:
