In 2016, the carbon emission of a family with three members in China averaged 2.7 tons, but now, it has risen to 3.5 tons. In metropolises such as Beijing, Shanghai and Guangzhou and so on, the average carbon emission of each household is close to 10 tons. Carbon Sink function refers to the capability that a forest absorbs and stores carbon dioxides as  forests are the largest carbon sinks of the terrestrial ecosystem, which play an important and unique role in reducing the concentration of greenhouse gases in the atmosphere and reliving global warming.

As the statistics indicate that a person only plants three trees per year capable of absorbing the carbon dioxide he/she has emitted into the atmosphere. At present, China is developing the carbon sink projects allow the public to participate in, for instance, the carbon sink project is built for the Sichuan Giant Panda Sanctuaries. And accordingly, as major carbon emitters, some enterprises have also taken actions to plant more than 600,000 hectares of carbon sink forests in a dozen provinces and regions around China. China will promote the purchase of carbon sinks and plantation of carbon sink forests, so as to speed up afforestation and perfect the function of forest carbon sink.