Please read the documents by the US Senate Commitee on Public Works and the Environment. It exposes the alarmist scammers and shows it is clearly a media hoax. Al Gore has a full government rebuke in that presentation. He should be locked up for causing irrational unscientific global alarmism for money. He bases his movie on James Hanson (ex-Nasa scientist NOT A CLIMATOLOGIST!) who was paid $250,000 by John "Heinz" Kerry and gang in the last election to try to trump up false support for him in his election. Appearantly Oil money is bad but Ketchup money is ok.
Scam. Most supporters are ignorant. That's a requirement.
1920-1970 Drop in temperature to a point Newsweek called for a global freeze in 1974. This is the fourth Global climate scam since 1920. (hopefully the last).
Read this speech and you will never fear global warming again. This is a summation by US Scientists and the department that is responsible to report the truth to the president free from press exaggeration and fear mongering. It is quite convincing.
http://epw.senate.gov/speechitem.cfm...=rep&id=263759