Beijing is planning to clear the smog from the skies with the help of Mother Nature. The latest proposal is to build a ventilation corridor. It calls for creating five wind routes, more than 500 meters wide, which run largely from the capital’s northern suburban areas to the south. Some secondary corridors will be more than 80 meters wide. The corridor will be created by connecting the city’s parks, rivers, highways along with their green belts, as well as low building blocks.