Time Magazine: His colleagues call him the “Flying Dutchman” because of all the time Yvo de Boer spends in the air, traveling from one world capital to another as he tries to stitch together a global deal to cut greenhouse-gas emissions – and possibly save the world. As executive secretary of the United Nations Framework Convention on Climate Change (UNFCCC), De Boer is the U.N.’s point man for the ongoing global effort to plan a successor to the Kyoto Protocol, which expires in 2012. (See pictures of our …