Whether global warming/climate change is or is not happening/caused by humans, it isn't anti-mustachian to eliminate a drain on the pocketbooks of a nation's population when that financial drain does alot of nothing to address the issue.
I suspect to the left wing authoritarians of the world, AGW was a expedient crisis. We have one guy who's slide show was the subject of many "how not to use data and statistics" lectures in my statistics class, a man who quietly positioned himself to profit heavily from the tax and trade system he proposed in the US. Additionally, every government legislative solution has been a money and power grab that was light on actual reductions in CO2.
I for one, see the data indicating that CO2 increases in response to an increasing global temperature just as strongly as I see it indicating that CO2 causes the temp increases. (remember, the tests they're running only show that they have an x% chance of being correlated, NOT that one causes the other. Often, the cause and effect can be mixed up.) Couple that with some of the solar phenomenons (mar's ice caps have been melting during this time period too...) and I don't think the case is as clear cut as alot of people think.
Imagine for a moment you're a climate scientist. You look at the data, and see that perhaps, the conclusion is tenuous. You think about voicing a dissenting opinion. But then you see anyone who voices the same opinion being destroyed by the media and the holders-of-the-funds and think better of voicing your opinion. I'd bet there's alot of that going on.
Also, I refuse to let it be thought that the whole "sensibility in finance" thing has been coopted by the liberal left in this country. Sorry, but no. There is nothing inherently left about this philosophy.