Global+Furures+-+The+Green+House+Effect

[] [] [] [] [] [] ||
 * ==Global futures - The Green House Effect [[image:polar_bears.jpg width="220" height="230" align="left"]]== || ==A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation. Some of the main greenhouse gases in the Earths Atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone. In the Solar System, the atmospheres of Venus, Mars, also contain gases that cause greenhouse effects. Greenhouse gases greatly affect the temperature of the Earth, without them the Earth's surface would be on average about 33 degrees colder than at present. == ||
 * [[image:http://www.ucar.edu/learn/images/radiate.gif align="right"]] || ==Links - ==