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"In stark contrast from the 2009 Copenhagen conference, which asked countries to accept a 'top-down agreement', many countries have submitted their own INDC to the UN Framework Convention on Climate Change ahead of the Paris talks, a reason that we should be more optimistic about the outcome," said Yu.

They have also agreed to enhance cooperation in science and innovation, energy, logistics, employment, food safety and intellectual property rights, it said.

BEIJING, Oct. 30 (Xinhua) -- China's top legislature on Friday deliberated on the country's first law on deep seabed exploration, in an effort to protect the maritime environment and boost sustainable exploitation of deep sea resources.

Now with frequent extreme weather and related natural disasters as well as the imminent sea-level rise, expectations are high that the Paris conference will reach a second legally-binding treaty to replace the Kyoto Protocol. Yet in the run-up to the conference, major differences remain, particularly on the principle of CDR. Accords and conventions reached previously agreed that rich countries should mobilize 100 billion U.S. dollars a year by 2020 to help developing countries fight climate change.

In 2008, the first G20 Leaders' Summit was held in Washington, D.C. in the United States, and the group played a key role in the response to the global financial crisis.