Hindu: U.S. President Barack Obama with Prime Minister Manmohan Singh during a round table meeting at the G8 summit in L`Aquila, Italy, on Friday. L`Aquila, Italy: Prime Minister Manmohan Singh told the leaders of the major economies at their summit here that India was doing a great deal to combat climate change with an ambitious National Action Plan and will work with other countries for the successful conclusion of the negotiations at Copenhagen. In his intervention at the Major …