Reuters: U.N. climate talks in Cancun will be the last chance for nations to agree on thorny issues such as technology transfers and will test the dialogue’s credibility, India’s environment minister said on Wednesday. Nations must reach a consensus on sharing green technology between rich and developing countries and resist the temptation to cling to old positions “like a mantra,” Jairam Ramesh told a news conference after a two-day climate meeting in New Delhi. Nations were so divided on intellectual…