A compromise wording on sharing emission reductions enabled negotiators to clinch a deal in Lima, but many controversial issues remain undecided for next year's climate agreement.
The annual UN talks were plagued by disputes between rich and poor countries on how to share the burden of emission reductions under a global deal.
Emerging economies want to retain the concept of “common but differentiated responsibilities” of the 1992 climate convention while the EU and other industrialised nations argue that times have changed and everybody needs to chip in according to their abilities.
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