What are your current beliefs on climate change? Specifically, would you defer to the view that greenhouse gas forcing is >the main source of long-term climate change? How long-term?

I have no particular opinion about that. I think any specific predictions are more likely wrong then true, especially predictions about climate change economic effects, and catastrophic predictions are almost certainly wrong. I strongly oppose emissions cut policies.

What were your beliefs on climate change when you first came across the subject, and how did your views evolve (if at >all) on further reading (if you did any)?

I thought that climate change is an obvious scam (that is default position in my country). No I don't.

What are some surprising things you learned when reading up about climate change that led you to question your beliefs >(regardless of whether you changed them)?

The most suprising thing is that there is any science involved at all, not just political propaganda.