[gondramB]

"Have you ever actually taken a course in atmospheric physics ?"

Atmospheric dynamics, actually, although I have a degree in physics...

But that's not the point. You are discussing whether global warming is human caused - that is right question. Many people link global warming and human causation automatically or they deny that the surface temperature has risen this century.

I have a number of concerns about whether human causation could be the dominant factor in global warming but that's another thread.

[Reily]

I have degrees in physics & geophysics also.
I absolutely don't buy into the notion that human activity can do any more then local changes, even then it is hardly permanent. The sun does it all ! Where the sun goes we go ! The second main contributor is the dynamic earth.