Smoke rising from burning garbage blurs out greater adjutant storks resting at a dumping site on the outskirts of Gauhati, India, Friday, Nov. 14 2014. This week's China-U.S. climate agreement between the world's top two polluters puts pressure on India, No. 3 on the list, to become more energy efficient and should encourage investment in renewable energy. China emits a quarter of the world's greenhouse gases, the United States 15 percent and India about 6 percent.