French president hopes to boost Paris climate summit during China visit

Franiois Hollande meeting Chinese president as France tries to get China's approval of mechanism to make countries ratchet up their emissions cuts

French president Franiois Hollande hopes to use a state visit to China to boost difficult climate negotiations, a month before a UN conference in Paris aimed at slowing global warming.

China, the most populous country and the biggest emitter of climate-warming greenhouse gases in the world, has promised it will try to cap its rising emissions before 2030 as part of its national pledge ahead of the Paris conference.