I've never heard that growth claim, could you link to some articles/papers? Perhaps some people simply haven't heard the right argument? For me, I think a lot of deniers can be explained as a reaction to aggressive tree huggers. I got into a fierce argument with a friend who told me he's "disgusted" to hear I want to drive a pickup and that my answer to climate concerns was to carbon offset. It pissed me off so much I decided to scrap my plans to carbon offset and to get the car I -really- want to get, and not the high MPG model. Yes, CC is real but if you can't even work with people on keeping your footprint low, what can you do?