Sun Weide, deputy director, communications, for the Olympics rattles off in flawless English the measures the state is taking to transform Beijing into a "pollution-free" city by August '08. For instance, 27.8 million new trees will have been planted in Beijing, polluting factories are being relocated and 50,000 taxis and 3,000 buses have been replaced by cng vehicles. Meanwhile, a brand new gas pipeline from western China to Beijing has resulted in the use of gas for energy rising from 500 million cubic feet to three billion cubic feet and will increase to five billion by 2008.