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===About the Greenhouse Effect===
: The '''greenhouse effect''' is caused by [[gas]]es in the [[atmosphere]] being more [[transparent]] to [[Visible Light|visible light]] from [[The Sun]] than [[Infrared Lightinfra-red]] [[emit]]ted from the surface of the [[planet]]. The [[Visible Light]] from [[The Sun]] strikes the surface of the [[planet]] causing the surface to increase in [[temperature]]. The surface cools by [[emit]]ting [[Infrared Lightinfra-red]]. If the amount of [[radiation]] [[emit]]ted is reduced because the [[atmosphere]] traps more [[infra-red]] the [[atmosphere]] then the [[Infrared Lighttemperature]] of the surface of the [[atmosphereplanet]] will increase in . This will happen until the amount of [[radiation]] [[emit]]ted becomes the same as the amount of [[radiation]] [[Absorb (Physics)|absorbed]] and the [[planet]] reaches a [[Temperature Constancy|constant temperature]].
: Some [[gas]]es have a greater '''greenhouse effect''' than others. [[Carbon Dioxide]] and [[Methane]] has a strong '''greenhouse effect''' so they are called [[Greenhouse Gas|greenhouse gases]].
: The '''greenhouse effect''' is essential to keep the [[Earth]] warm enough for [[liquid]] [[water]]. If there were no [[Greenhouse Gas|greenhouse gases]] the [[Earth]] would cool and the [[ocean]] would [[freezing|freeze]].
: If the [[percentage]] of [[Greenhouse Gas|greenhouse gases]] were to get too high the [[Mean Average|average]] [[temperature]] of the [[Earth]] would increase due to the '''greenhouse effect'''.