Thinking about the predominant generator of CO2 – cars – we are SO much better off today than back a few decades back. Just the other day, I walked by a 60’s vintage car that was running and was almost instantly asphyxiated by the stink of the thing. NOW, you can’t smell a car running. And the difference is clearly visible in the massive reduction in smog in the LA Basin, too. I don’t mind changes that are smart but when blanket statements are made by people who know nothing about the climate or mans impact on same … I take MAJOR exception. Worse, when they say that if only we pay a higher “tax,” they’ll make it all better. Like David C says … HOGWASH !!