FauxPasIII... once again, you prove how much closer the green movement is to religion than to science.
You basically have paraphrased "Pascal's Wager". Which is basically "If you believe in God and are wrong, you loose nothing (and maybe gain some things) -- but if you DO NOT believe in God and are incorrect, fire and pain, etc... Therefore being an atheist is illogical".
If you replace "God" with "Global Warming" and "atheist" with "global warming doubter"... got got your argument.
There are a couple reasons why Pascal's Wager (and by extension your argument) is incorrect. Let me answer your questions...
"if we follow the consensus and it turns out they're wrong, the consequences of that are what?"
- The lack of study on real issues, the lack of honest and directness can decay science as a whole. We could have global cooling, or some other major issue going on -- that we choose to overlook because of our obsession with follow a consensus rather than fact. I believe there are many dangers in this.
"We've dramatically cleaned up our environment,"
- Possible a real benefit
" achieved energy independence,"
- Maybe, with a massive investment in nuclear power, but I think if you look at the fundamentals of most of the other energy streams, you will be sadly disappointed. Look into how much energy it takes to MAKE a solar cell, look at how much energy it takes to TRANSMIT wind power... etc, etc.
"freed ourselves from the political constraints of fossil fuels"
- I assume this is a reference to 'no blood for oil' and similar chants. I will just gloss over it, as it is more politics.
"and massively bolstered our economy with a whole new class of green businesses."
- This isn't a fact, it isn't even a logical follow-on, this is hope. You "hope" a green economy will explode creating new jobs. Read some of the old clippings about nuclear power and you will do the time warp again! My point is, this is blind hope / faith -- like believing in a fancy place in the clouds waiting for you ... it isn't based on any facts.
"Explain again why you're so against this?"
- Because, I want science to be driven by truth... even when that truth is unpopular, even when that truth is frustrating, even when that truth goes AGAINST political causes. I want science to be unburdened by such things.