India"s environment minister said the country may have to be more flexible over climate change talks after China unveiled its first firm targets to cut carbon emissions, a newspaper reported on Friday, according to Reuters. On Thursday, China pledged to cut the amount of carbon dioxide produced for each yuan of national income by 40-45 percent by 2020, compared to 2005 levels, a move hailed as a vital to rekindling U.N. talks to tackle global warming. "China has given us a wake-up call," Jairam Ramesh was quoted as saying by the Hindustan Times newspaper. "We have to think hard about our climate strategy now and look for flexibility." "Now the pressure is even from the advanced developing countries on us to declare targets on emissions which are not legally binding," Ramesh said ahead of a trip to Beijing. India and China have said they would work towards a common position in talks on a climate deal. China is the world"s top greenhouse gas emitter and India is the fourth largest. The United Nations is aiming for a comprehensive political agreement at climate talks in the Danish capital that start in little over a week, covering tougher emissions targets, climate financing for poorer nations and the transfer of clean-energy technology. The troubled talks have run out of time to settle a legally binding deal after rancorous arguments between rich and poor nations about who should cut emissions, by how much and who should pay.