Progress towards developing a global strategy to cut emissions is too slow, according to environmental group WWF.It issued its warning at the end of key UN talks that considered what measures should replace the current set of climate targets, which expire in 2012.
The group said the negotiations in Bonn had failed to make any progress because nations were presenting "shopping lists, not blueprints" for action.
The UN's climate chief agreed that the process needed to become more focused.
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