A China-US Climate Summit has come to a close in Los Angeles.

Chinese State Councilor Yang Jiechi has led the Chinese delegation.

He says the focus of the meetings in LA were focused mostly on implementing last year's agreement announced at last year's APEC meeting in Beijing.

"Climate change is a major challenge in the world, and is the common responsibility of all mankind to address it. The state visit by President Obama to China last October achieved fruitful results. The two heads of state reached a consensus on climate change and released a China-U.S. Joint Statement on Climate Change. This summit is an important step in implementing that statement."

U.S. Vice President Joe Biden says action by both China and the US will be key in getting a global climate change agreement signed in Paris in December.

"Our leadership is vital, China and America, in achieving successful global climate agreement in Paris. The steps announced here unite our efforts, give us the momentum to reach these global agreements. We must learn from Kyoto and Copenhagen. We must reach an agreement that is ambitious, effective and drive down global emissions in the decades to come."

The two-day summit in Los Angeles has been attended by delegates from some 30 local governments from both countries.

They've been given specific objectives on energy conservation and emissions reductions.

As an example, the city of Los Angeles is planning to lower its greenhouse gas emissions in 2025 by 45 percent from 1990 levels.

Beijing expects its carbon dioxide emissions will peak by 2020.