Alfie, the basics of GW/CC has been explained here repeatedly on this forum. There are lots of attempts at trying to explain all the theory, from basic to complex. There are even videos that you can watch on it - I recommend those of potholer54 on youtube, and the more technical ones of greenman3610. There are websites designed to explain both sides of the controversy.
What Megalodon has been saying is that these arguments are not a matter of opinion; they are science. There is only one answer, one expression of reality, in the final analysis. When you vote in an election, you are expressing an opinion and there exists no truly right or wrong position (in general, either choice are real possibilities and may occur), but in a matter of science there is right and wrong, correct and incorrect. Further, it is the aim of the scientific establishment to come down, in the final analysis, on the correct side, as a matter of not only policy but by design and execution of the scientific method. No one knows precisely where that ultimate point of reality is right now, but the direction that the scientific establishment is headed is toward the existence of anthropogenic global warming. Their processes are not hidden; they are published, debated, modeled, experimented with and reasoned as finely as the many disparate souls called scientists can do, even within their own ranks.
Now, your task, as in any debate in which you want to take part, is to first educate yourself on the issues. Since this is science that education is technical, and if you do not understand the science then your opinion carries roughly as much weight as a two year old's does in a presidential election. Since you are in reality assumed to be a grownup here, if you try to weigh in without any attempt to display the knowledge the debate requires, you will be treated roughly, and since you are expected to be prepared, the question of what your problem is with the established science is proper. Sorry, but life and time are short.
Finally, be aware this is the Internet, not a science journal. We will not settle the questions here; it is enough if we educate ourselves and others to the way that science works. Almost no one here is influential in the final analysis, but we can all still play like we are.
