Climate deal looks close, but may not halt warming

A deal at the UN climate peak looks more eventual following a frantic day of behind the scenes diplomacy.

China signalled concessions on patrol of emission curbs, again the US oral unfeigned would commit money for adulthood countries.

Leaders are likely to accept big choices to make when they meet on Friday.

However, a leaked document from the UN climate convention indicates the best racket up here will not keep the temperature rise below 2C (3.6F).

Even if countries appliance their biggest pledges, a recur of 3C (5.4F) is indicated, corporeal complete.