if we want to continue to be who we are, enjoy the benefits and be able to pass them on to our children, we do need to fuel our future in a cleaner, greener way. 

世界又熱又平又擠， 作者THOMAS L. FRIEDMANAPRIL 15, 2007

選讀 http://www.nytimes.com/2007/04/15/magazine/15green.t.html