Realistically you aren't going to get a working scientist to post in your forum I'm afraid.
Global warming and forums are a difficult combination I've found, on this forum and also elsewhere. The problem is that people tend to say "what about...?" and "I heard this..." and act like it's up to someone else to explain everything personally and set it all out without any personal research or effort to understand, then they will answer - "no I don't buy that..." and this is after admitting they don't know or understand the issues involved!
This is a very thorough resource however from a well respected source:
There's also my own explanation on this and associated pages:
Hope this is of some help - Paul