The decision was taken at the central cabinet meeting, state-run Xinhua news agency reported.
China and the US are the top two emitters of greenhouse gases in the world.
The new pledge to cut greenhouse gases was announced as Beijing is enveloped by severe industrial pollution forcing people to wear masks.
As per the new plan, the government will restrict other greenhouse gas emissions and start a carbon trading market in the next five years to help meet the commitment to peaking carbon dioxide emission around 2030, according to the 13th Five-Year work plan for greenhouse gas emission control by the cabinet.
Total coal consumption will be kept at about 4.2 billion tonnes, while smoggy regions should aim for negative coal use growth after 2017.
The share of natural gas consumption in total energy consumption should be lifted to about 10 per cent by 2020, it said.
China will also speed up industrial upgrades to support low-carbon industries while promoting green technologies in industrial production.
The cabinet decision comes on a day the landmark Paris Agreement to combat climate change becomes international law.
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