Carbon dioxide is released by natural processes and human activities. Natural processes include volcano eruptions and respiration, human activities include deforestation, land use changes, and the burning of fossil fuels. Carbon dioxide concentration has increased by a third since the industrial revolution. As the earth 's atmosphere heats up water vapor increases as well as clouds and precipitation. Methane is a very active greenhouse gas produced by natural sources and human activities. Nitrous oxide is a powerful greenhouse gas produced by soil cultivation practices. Chlorofluorocarbons are synthetic compounds entirely of industrial origin. They contribute to the destruction of the ozone layer and are produced and released into the atmosphere for this purpose,
Carbon dioxide is released by natural processes and human activities. Natural processes include volcano eruptions and respiration, human activities include deforestation, land use changes, and the burning of fossil fuels. Carbon dioxide concentration has increased by a third since the industrial revolution. As the earth 's atmosphere heats up water vapor increases as well as clouds and precipitation. Methane is a very active greenhouse gas produced by natural sources and human activities. Nitrous oxide is a powerful greenhouse gas produced by soil cultivation practices. Chlorofluorocarbons are synthetic compounds entirely of industrial origin. They contribute to the destruction of the ozone layer and are produced and released into the atmosphere for this purpose,