After gruelling negotiations, delegates can leave Cancun on a positive note, having reached a deal to curb global warming.

Some of the newer details to emerge from the deal include ways to share clean energy technologies.It also reaffirms a goal of raising an annual 100 billion US dollars in aid for poor countries by 2020, to help them battle the effects of climate change. The result has been welcomed by world leaders.

German Environment Minister Norbert Roettgen said, "I think today was a very big success for international climate protection. The whole package was accepted which means important steps are taken and trust is being created in the UN process, in the international process. For the first time, the two degree aim was accepted by the international community. There is concrete progress in the international forest protection and the cooperation of technology, long term financing, so we're all very happy here."