New York Times: Once more, frustration with stymied efforts on climate change has emerged as a major theme at an international conference on the planets health. Opening the 13th annual Delhi Sustainable Development Summit conference this week, Indias prime minister noted that similar sentiments surfaced last year at the United Nations Rio+20 meeting, which marked the two-decade anniversary of a landmark Earth Summit in Rio de Janeiro.
Rio+20 was a poignant reminder that the ambitious goals that we had set...