Environmentalism IS a "liberal cause" You got that part correct! And as a "liberal cause" you liberals will not rest until you've sucked every ounce of life out of our economy, to fund some bird-brain notion that our very breath, is destroying the planet, and needs to be regulated! It's never good enough that some conservatives and moderates go along with you on cleaning up our act, trying to find ways to become energy independent, or encouraging new technologies. You want to parlay that into more! You just take whatever little credibility the 'right' might give you, and run with it... to the outer reaches of insanity and beyond!
Most average people, left or right, are not up to speed on climatology. We know what little we learned in public school, and we know what we hear reported on TV, and by people like Al Gore. So, a lot of people take all this in, and they think like Annie, or like I once did, that we should do all we can to clean up the planet... but then the "liberal cause" can't be satisfied... there is nothing left to fight for! We have to do more than 'clean up the planet' we have to SAVE the planet from certain doom! And it just so happens to go against our conservative core values in every way, and must be done by destroying capitalism and enterprise, and instilling institutions of liberal socialist government control over us all! THAT is the ONLY way to solve the crisis! Liberals won't have it any other way, because it IS a "liberal cause!"