CaptainCaveman, why don't you start here:
http://www.epa.gov/climatechange/science/index.html#ref
http://www.newscientist.com/topic/climate-change
http://www.exploratorium.edu/climate/
http://www.ipcc.ch/
The biggest initiative on capping greenhouse gasses is the Kyoto Protocol, signed and ratified by 121 countries, NOT INCLUDING THE US. We are not leaders in Green initiatives, nor are we even close. China, the BIGGEST producer of greenhouse gasses does not have to follow the protocol because they are listed as a developing nation, and under Kyoto, developing nations do not have to restrict their use of fossil fuels. Bush (the 2nd one) pulled the US out of the Kyoto protocol because they wanted to change China's status to non-developing. So since they hold over 1/3 of the US national debt, we backed them up. As of right now there is no green legislation or regulations within the US.
Industrialization, burn and slash farming, cow farms, and use of fossil fuels ALL CONTRIBUTE TO THE GREENHOUSE EFFECT. Thats Science. Not propaganda. EVEN THE EPA, a division of the US GOVERNMENT, acknowledges that PEOPLE ARE HUGE CONTRIBUTORS TO GLOBAL WARMING. IN FACT, WE DIRECTLY CAUSED GLOBAL WARMING, GREENHOUSE EFFECTS, ENVIRONMENTAL PROBLEMS LIKE EXTINCT AND ENDANGERED SPECIES ETC.
If you don't believe that, do me a favor and stop talking because you don't know what the hell you are talking about. Go ahead and listen to those who say it doesn't exist or isn't caused by humans, and then in 20 years when the climate changes so drastically that food production is all be halted, don't cry that you are hungry. And definitely don't do your own research because thats just crazy, everything they say on corporate owned television HAS to be TRUE right?!
Respectfully,
Maribeth