Guardian: A leaked recording of behind-the-scenes negotiations between world leaders at the Copenhagen climate summit in December has revealed bad-tempered exchanges and clear frustrations from Europeans at what they saw as intransigence by the Chinese. The recording – published on the website of German magazine Der Spiegel – offers an extraordinary glimpse of the battle taking place between leaders including Barack Obama, Gordon Brown, Angela Merkel and Nikolas Sarkozy, and Chinese and Indian …