Forbes: China Used More Concrete In 3 Years Than The U.S. Used In The Entire 20th Century [Infographic]

China produces and consumes about 60 percent of the world’s cement — the Three Gorges Dam alone required 16 million tonnes of it. To put China’s massive 21st century construction splurge and concrete consumption into perspective, Bill Gates made a mind-blowing comparison. According to his blog, between 2011 and 2013, China consumed 6.6 gigatons of…