Volcanos recycle CO2 into the atmosphere. CO2 is stored in Limestone at the bottom of the ocean. The Limestone moves into subduction channels and is recycle through volcanic activity into the atmosphere. A temperature of 4-40 C is suitable for life and must be maintained. Greenhouse gases include: H20, O3, CO2, CH4 and are capable of capturing infrared energy from the earth's surface, in so doing, warm the planet. Oxygen and Nitrogen do not capture energy. However, suppose the oceans froze, this would cause an insufficient amount of CO2 generated for life to exist. CO2 constitutes on 0.035% of the atmosphere. Plate tectonics play an important role in maintaining levels of greenhouse gases. The water on the earth is .05% by weight. The maintenance of liquid water is controlled by global temperatures. The temperature of the earth is controlled by the amount of energy coming from the sun and how much energy is absorbed by the planet and how fast the greenhouse gases are replenished. If the green house gases are not replenished the earth will grow colder. "On a planet with volcanism there is usually an abundance of greenhouse gases, too much in some cases" - from both active and dormant volcanos. [Learn More ...]

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