The first episode of the first season is about geothermal energy as the source of human life. It is really amazing, especially the cycle of carbon dioxide and the movement of the earth's plates.
According to the documentary, if there is no movement of the earth's plates and no mutual extrusion of the plates, the earth may eventually be eroded by rain, causing the entire earth to be covered by the ocean.
The reason the earth can maintain a temperature range suitable for human habitation is due to carbon dioxide, and the carbon dioxide cycle is inextricably linked to volcanic eruptions.
The operation of the earth is a whole system.
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