World leaders launch coalition on carbon pricing
Countries agree on imposing carbon tax and adopting a market mechanism for trading carbon as part of their plan to reduce emissions
Negotiations move ahead in chaotic manner during multiple parallel sessions
Parties urged to speed up talks in informal groups
Geneva climate talks: countries agree on draft text for Paris deal
Numerous controversial, unresolved arguments yet to be sorted out
Great expectations from Bonn climate talks, but sticky issues need resolving
Drafting a universal climate change agreement enters critical stage of negotiations and streamlining of agreement text