China will increase its investment and the number of programs to expand South-South Cooperation by helping other developing countries tackle climate-change challenges, a leading official said at a UN conference on Tuesday in Qatar.

In the next two years, China has plans to train another 2,000 officials and technicians for other developing countries, in addition to the 380 from 87 developing countries who have already been trained, said Xie Zhenhua, the country's top climate-change official and head of the China delegation.

He said the training will focus mainly on adaptation to climate change, technology transfer and areas related to the development of renewable energy.