Between heaven and earth, everything contains carbon. The accumulation of carbon has its source. Mountains, rivers and seas, forests and fertile fields are all the places where carbon gathers and where carbon sources are located.

In the mountains and forests, good trees are shaded, leaves are photosynthetic, and carbon is absorbed and stored. Spring and autumn are fruitful, plants bloom and wither, fallen leaves are humid, and carbon is returned to the soil. This is one of the carbon sources. And where the wetlands are rich in water and lush, plants are clustered, and their living and metabolism are all intertwined with carbon, which is also the source of carbon.

Rivers, lakes and seas, the waters are vast. Floating things perform photosynthesis and absorb carbon in the body. The mud at the bottom of the water accumulates over the years and contains deep carbon. And the sea is vast, algae flourish, and the power of carbon absorption is significant, which is an important source of carbon.

Between the fields, the grains grow, absorbing carbon and oxygen. Farmhouse manure application, straw returning to the field, all keep carbon in the soil. In addition, deep underground, coal and oil, ancient organisms formed by carbon deposition, although used by people, it is also the initial carbon source.

To observe the world, the breadth of carbon sources is related to the balance of ecology. Protect and nourish it, so that nature is harmonious and all things prosper.