Is "global warming" being used to bring socialism in through the back door?

I do not know if it is an attempt to bring about socialism. I do think it is about money and control though. The money is funding for scientists and the control is legislators who want power to tax and limit how you live your life. From a UN standpoint it cannot be denied that they are using this to attempt to punish developed nations, not just the US. The evidence of this is in the Kyoto Treaty. By exempting China and India in the manner they have proposed they show that they are less concerned with the environment than a deeper political agenda. My biggest question about the Global Warming debate though is this. If the evidence that it is man made is so compelling and absolute why are they trying so hard to silence all alternative debate on the subject? Science is about discovery and we should never stop asking questions. If the methodology used is sound and the conclusions are correct, surely there is nothing to fear from those who question as they will be proved incorrect and yet to question brings attempts to destroy all credibility of the asker? When this tactic is used it always leaves me wondering what the users have to fear and what they are trying to hide from outside scrutiny.