COP27: China stops short of joining global methane pledge

China's special climate envoy Xie Zhenhua outlined his country's policy for reducing methane emissions at an event at the COP27 U.N. climate talks on Thursday, but stopped short of joining an international deal to cut emissions of the powerful greenhouse gas by 30% by 2030.

U.S. Special Climate Envoy John Kerry introduced Xie at the event, where the United States and the European Union announced more than 150 countries had signed on to the pledge since it was launched last year at climate talks in Glasgow.