US President Barack Obama discussed with Prime Minister Manmohan Singh the situation in Afghanistan ahead of unveiling his new Af-Pak policy. Obama telephoned Dr Singh close on the heels of the two leaders' meeting in Washington during which the Afghan issue was discussed prominently. The Prime Minister's Office said in New Delhi that the two leaders, during their brief conversation, discussed ways to bring peace and stability in Afghanistan, apart from the next week's climate change summit in Copenhagen. During his meeting with Obama in Washington last week, Dr Singh said it is important for all major regional and international players to put their weight behind the Afghan government. On the climate change issue, the Prime Minister told Obama that India would play a constructive role in the negotiations and looked forward to a successful outcome in Copenhagen. India has also made it clear that it is not in a position to take legally binding emission cuts but has already embarked on an enhanced energy efficiency mission which could reduce the carbon intensity of its rapid growth.