Yale Environment 360: Bullet trains fuel real-estate booms, improve quality of life, reduce air pollution and traffic congestion, and provide a safety valve for crowded cities, especially in the developing world, according to a study by Chinese and U.S. economists. The study was based on Chinas rapidly expanding high-speed rail network, but the researchers said the benefits experienced there would be similar to those from Californias proposed high-speed rail system. Bullet train systems connecting Chinas largest...