President Xi Jinping delivers a keynote speech via video link at the leaders' summit of the 15th meeting of the Conference of the Parties to the Convention on Biological Diversity (COP15) on Oct 12, 2021. (File photo: Xinhua)

BEIJING, Dec. 14 (Xinhua) -- Chinese President Xi Jinping will on Thursday address the opening ceremony of the high-level segment of the second part of the 15th meeting of the Conference of the Parties to the Convention on Biological Diversity (COP15) via videolink, Foreign Ministry Spokesperson Hua Chunying announced here Wednesday.