Updated

French President Francois Hollande says he and his Chinese counterpart have agreed that a global climate change pact should require countries to increase their emissions cuts every five years.

France wants an automatic revision of national emissions targets included in a deal to be thrashed out at a U.N. conference in Paris beginning later this month. The support of China, the world's biggest carbon emitter, is key.

Hollande also said he and Chinese President Xi Jinping agreed their countries should develop low-carbon economies by 2050 to help combat climate change.

Hollande spoke Monday during a state visit to China that he has used to boost the climate negotiations that begin Nov. 30.

Hollande said Xi confirmed that he would attend the opening of the conference, which runs through Dec. 11.