UNITED NATIONS - China on Tuesday reiterated its resolve to fight climate change, pledging to help boost South-South cooperation in dealing with the global threat.

Speaking at the UN Climate Summit as Chinese President Xi Jinping's special envoy, Vice Premier Zhang Gaoli said China will announce its post-2020 actions on climate change as soon as possible, which will lead to "marked progress" in reducing carbon intensity, increasing the share of non-fossil fuels and raising the forest stock.

The action plan, Zhang said, will also take the world's most populous and largest developing country to the peak of its total CO2 emissions as early as possible.

Meanwhile, Zhang said China will double its annual financial support for the establishment of the South-South Cooperation Fund on Climate Change starting next year and will provide 6 million U. S. dollars to support the UN secretary general in advancing South- South climate cooperation.

Members of the international community, he said, should meet their respective commitments and make concerted efforts so that the 2015 Paris conference will reach an agreement as scheduled.