The cause of my original beliefs on climate change is my parents' politics.

In my larval form, I had many more common misconceptions about how the greenhouse effect was supposed to work. The most wrong, and also the only one that I actually changed because of an anti' web site, was that the cycle of historical CO2 was a cause of historical climate changes, rather than an effect. Otherwise, I learned much more from RealClimate than I did the antis.

There was a distinct moment when I figured out that global warming was a physics problem that I could actually understand simple models of. Without these simple models, I would not actually understand the physical mechanism behind global warming. Most people still don't - people arguing on both sides don't know what they're arguing for/against.

The experts are basically right.