There is something today that is related to the cycle of carbon, and the source is important. It circulates in the world and is related to all things. The source of the cycle of carbon, if the stars guide the direction. Or it starts in the mountains and forests, trees absorb carbon for a long time, and through the change of time, the leaves fall into the soil, and the carbon also returns. Or it starts in the sea, plankton absorb carbon, die and sink to the bottom, accumulating over the years, and it is also one of the carbon sources.

After the rise of industry, coal is burned and oil is burned, and carbon comes out of the ground and enters the atmosphere. From this perspective, the source of the carbon cycle is related to natural life and life, and also depends on personnel actions. To understand the principle of the carbon cycle, we should start with the source of the carbon cycle, observe its changes, and investigate its causes in order to find the way to ecological balance in the world and ensure the harmonious coexistence of all things.