The global warming brigade hijacked the pollution issue. There always will be a debate on global warming. So keeping global warming as the prime focus of fossil fuel usage kept people divided. If pollution was the prime focus from day one, then more push would have been given to renewable. Maybe, Arnold is able to bring more people to think in this direction.
This is why I hate environmental discussions with a passion, because at some point if one expresses less than total agreement with the AGW crowd you apparently are in the pocket of Smokey McCoalstove and enjoy smog, dead fish, and coughing babies. Martin Luther received a warmer response from the Catholic Church than some "deniers" who dare question the established dogma.