他们试图证明，更加可持续的发展模式给世界各大城市 、 （ 通过减少空气污染）给人民健康、给能源安全带来诸多好处，也能让穷人获得更多的能源。
They seek to demonstrate the benefits that a more sustainable pattern of development can bring to the world’s cities, to people’s health (from the reduction in air pollution), to energy security, and to the ability of the world’s poor to access energy.