[Publius6961]

It’s always a good idea to provide links along with info like that. Adds credibility and a chance for people to read more about it if they choose to.

Although I totally agree, how many times does the same simple question be answered before it becomes simply a tool for distraction and delay? The ultimate pastime of the ignorant?

Perhaps a global warming "sandbox" is in order, for those honestly and seriously beginning science kindergarten.

[Publius6961]

Google.
Search "Constituents of earth's atmosphere"

Returns

http://webs.wichita.edu/astronomy/wqquestions/earth_Questions.htm

http://www.charlotteconservative.com/index.php/2010/01/new-scientific-study-co2-absorption-into-atmosphere-hasnt-changed-in-160-years/

http://www.guardian.co.uk/environment/2008/may/13/carbonemissions.climatechange