Reuters: Environment minister Jairam Ramesh 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. 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," …