Climate change exists and has always existed (no, not the hockey stick to infinity chart kind). People don't debate the fact that the climate does change.
"Global warming" though is political scaremongering (output via mass media) with a hidden global agenda.
What happened to "Global cooling" and "the next Ice Age"?
Al Gore sued by over 30.000 Scientists for fraud
http://www.youtube.com/watch?v=FfHW7KR33IQScientists use it to get grants, and mass media uses it because they're bought and paid for, which is why a global carbon tax will eventually be implemented.
Research the cause-effect relationship of CO2 driving temperature.
Temperatures go up, then CO2 goes up, not the other way around.