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The atmosphere is a dynamic collection of gases that constantly move and change. These gases form several layers around Earth that are loosely defined by composition and temperature.
Greenhouse gases are gases in the atmosphere that absorb energy and prevent heat from escaping into space. This process is known as the greenhouse effect. Greenhouse gases include: Carbon dioxide, Methane, Nitrous oxide, Water vapor, Synthetic fluorinated gases, Ozone, Chlorofluorocarbons, & SF6.
Greenhouse gases are transparent to short-wave radiation from the sun, but block long-wave infrared radiation from leaving the atmosphere. This traps radiation from the sun and warms the planet's surface. Human activities, such as burning fossil fuels, release additional greenhouse gases into the atmosphere. Carbon dioxide is the most important greenhouse gas associated with human activities. Landfills also release methane gas, which is a greenhouse gas that is worse than carbon dioxide. Topics include: Atmosphere, Climate Model, Greenhouse Gases, & Ozone Depletion.
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