2C warming goal now 'optimistic' - French scientists

French scientists unveiling new estimates for global warming said on Thursday the 2 C (3.6 F) goal enshrined by the United Nations was "the most optimistic" scenario left for greenhouse-gas emissions.

UN: Canada still obliged to fight climate change

The UN climate chief on Tuesday voiced regret over Canada's withdrawal from the Kyoto Protocol and said that the country still had legal obligations to work against global warming.

Durban climate deal leaves difficult road ahead

The world's nations on Sunday set their sights on a new all-encompassing pact on climate change that marks a break with the past and will also be gruelling to achieve.

World 'heading for 3.5 C warming': study

Current pledges for curbing carbon emissions will doom the world to global warming of 3.5 C, massively overshooting the UN target of 2 C, researchers reported at the climate talks here on Tuesday.

China lays out conditions for legally binding climate deal

China's top climate negotiator Xie Zhenhua on Sunday laid out conditions under which Beijing would accept a legally-binding climate deal that would go into force after 2020, when current voluntary pledges run out.

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