Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons (CFCs) The absorbed energy warms the atmosphere and the surface of the Earth Not all the greenhouse gas that we emit to the atmosphere remains there indefinitely For example, the amount of CO 2 in the atmosphere and the amount of CO 2 dissolved in surface waters of the oceans stay in equilibrium, because the air and water mix well at the sea surface When we add more CO 2 to the atmosphere, a proportion of it dissolves into the oceans Anthropogenic greenhouse gases Drawing shows four different levels of ozone in the atmosphere At top of stratosphere, 30 miles high, ozone absorbs most of the harmful ultraviolet radiation from the Sun At the top of the troposphere, 12 miles high, ozone acts as a greenhouse gas, trapping heat In the middle of the tropsohere, ozone helps clean up certain pollutants
What Is Climate Change Climate Assembly
