Multi-billionaire Microsoft founder Bill Gates recently wrote on his GatesBlog, “This might be the most mind-blowing fact I learned this year”, followed by a graphic of Chinese cement usage over the last 3 years. In short, China has used more cement in the last 3 years than the United States has used in the last 100 years! China’s 6.6 gigatons of cement, consumed in 3 years, dwarfs the U.S.’ 4.5 gigatons, consumed in 100 years. Here’s the amazing graphic provided by Mr. Gates.