From 1890 to 2007, rich countries contributed nearly 60 percent of carbon dioxide emissions into the atmosphere. India has contributed merely 3 percent of these emissions. The United States with just 5 percent of world’s population alone is responsible for nearly 30 percent of the carbon dioxide in the global atmosphere. India’s share in the world’s population is about 17 percent. By 2020 too India shall be responsible for about 4 percent of global carbon dioxide emissions. According to the Human Development Report of the United Nations Development Programme, the average energy consumed by an American is equal to the average energy consumed by two Germans or 27 Chinese  or 33 Indians or 300 Nepalis. As the United States account for the problem of carbon dioxide emissions and thereby global warming, historically, it is therefore the responsibility of the US to bear the burden of cleaning up the Earth’s atmosphere.