Low-carbon economy is an economic model based on low energy consumption, low pollution and low emission, and it is another great progress of human society after agricultural civilization and industrial civilization. The essence of low-carbon economy is the problem of high energy utilization efficiency and clean energy structure, and the core is the fundamental change of energy technology innovation, system innovation and human survival and development concept.

Carbon sink is defined as the process, activity or mechanism of removing carbon dioxide from the atmosphere. Carbon sink purchase is a specific form of emission trading and a specific purchase of carbon dioxide emission rights. Among them, forest carbon sink refers to the process of forest plants absorbing and fixing carbon dioxide in the atmosphere through photosynthesis, thus reducing the concentration of carbon dioxide in the atmosphere; Forestry carbon sink is a process, activity or mechanism that uses the carbon storage function of forests to absorb and fix carbon dioxide in the atmosphere by planting trees, strengthening forest management, reducing deforestation, protecting and restoring forest vegetation, and combining it with carbon sink trading according to relevant rules.

Therefore, purchasing carbon sinks can effectively eliminate the carbon dioxide emitted by buyers due to work and life, which is an effective way to avoid afforestation and show off.