On the source of atmospheric carbon dioxide
Between heaven and earth, the transportation and transformation of qi is related to the life of all things. Among them, the source of atmospheric carbon dioxide is particularly critical.

One source of observing the state of nature is the breath of living things. Birds and beasts, and even insects, all need to suck up and spit out turbid, and those who exhale, carbon dioxide is also the source. Every day and night, all kinds of creatures do their best, and the exhaled qi adds up and converges into the atmosphere. In the mountains and forests, tigers, leopards, jackals and wolves, between breaths, breathe out and contain carbon; in the rivers, fish, shrimp, turtles, turtles, when swallowing, there is also this qi.

Furthermore, the metabolism of plants is also its source. In spring and summer, the grass and trees are lush and lush, photosynthetically absorbing carbon for growth. Then in autumn and winter, the branches and leaves wither and rot in the soil. During this time, the carbon is decomposed by microorganisms, gradually converted into carbon dioxide, and returned to the atmosphere. In the vast plain, the herbs wither and prosper once a year, and the accumulated carbon is released year by year; in the deep forest, the trees take turns, and in the rotten wood, carbon also escapes into gas.

Volcanic eruptions are also one of the major sources of atmospheric carbon dioxide. Earth fire contains, once it erupts, lava billows and smoke rises. The gas it carries contains mostly carbon dioxide. Its momentum is majestic, and a large amount of this gas can be instantly injected into the atmosphere. Looking back at the past, when the volcano was moving, the surrounding area, even thousands of miles away, the composition of the atmosphere changed, and the amount of carbon dioxide suddenly increased.

And human activities are also an important source of atmospheric carbon dioxide today. First, with the rise of industry, coal, oil and other fuels are widely burned. Factories are numerous, chimneys are towering, burning day and night, and carbon is emitted with the smoke. In the ironmaking furnace, the fire is soaring into the sky, and the coke consumed is turned into gas; in the power plant, the wheels are flying, fuel is burning coal, and carbon dioxide is billowing out. Second, the prosperity of transportation, cars and boats are powered by fuel. Streets and alleys, cars and water Ma Long, exhaust emissions, all year round; rivers, lakes and seas, boats and boats shuttle, and also exhale this gas in the sky.

All of these constitute the source of atmospheric carbon dioxide. Knowing this source, and then knowing the cause of environmental change, can help safeguard the ecology and harmonize heaven and man, and seek long-term strategies.