Changes

A change in the balance between incoming [[solar radiation]] and outgoing infra-red radiation. Without any radiative forcing, solar radiation coming to the [[Earth]] would continue to be approximately equal to the [[infra-red radiation]] emitted from the Earth. The addition of [[greenhouse gases]] traps and increased fraction of the infra-red radiation, reradiating it back toward the surface and creating a warming influence (i.e., positive radiative forcing because incoming solar radiation will exceed outgoing infra-red radiation). <ref> [http://earthobservatory.nasa.gov/Library/glossary.php3?mode=all NASA Earth Observatory glossary] </ref>

'''Radiative forcing''' is a change in the balance between incoming [[solar radiation]] and outgoing infra-red radiation. Without any radiative forcing, solar radiation coming to the [[Earth]] would continue to be approximately equal to the [[infra-red radiation]] emitted from the Earth. The addition of [[greenhouse gases]] traps and increased fraction of the infra-red radiation, reradiating it back toward the surface and creating a warming influence (i.e., positive radiative forcing because incoming solar radiation will exceed outgoing infra-red radiation). <ref> [http://earthobservatory.nasa.gov/Library/glossary.php3?mode=all NASA Earth Observatory glossary] </ref>

==Notes==

==Notes==

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