Heck, I don't need science to think that it would be a good idea to diversify our energy sources. Just like you want diverse revenue streams in life, for retirement, for day to day living, we should try to find diverse ways to supply our energy demands...and the more renewable those avenues could be, the better.
I don't think that industrial pollutants are a good thing, and they should be reduced. I don't need Al Gore to tell me that.
The problem however, is the captains of Industry probably need some sort of doomsday scenario before they act, put money into R&D for other energy sources.
Some politicos need such scenarios to back away from allowing companies to build new refineries.
It's so damn complicated, and our trillion dollar fossil fuel energy infrastructure won't be easily changed.