The central question now is whether these deep rifts can be healed in the next 12 months or whether the world is heading towards another crippling failure.
Leaders must heal rifts before Durban
As climate negotiators embraced one another in the early hours of last Saturday morning in Cancún, thoughts will have turned to Durban - the likely scene of a battle over the future of the Kyoto Protocol, which expires in 2012.
16 December 2010 23:00 GMT
Updated
25 November 2012 14:53 GMT
