Google him.  I started studying the situation over ten years ago.  I am a patented inventor,(hydro-dynamic power generation system) and I thought that this wonderful ability of a small amount of carbon dioxide to have a major effect on temperature might be useful.  I began trying to understand just how carbon dioxide performed this feat.  So far no one has been able to explain to me the way the carbon dioxide "pushes" temperature.  I read Arrhenius and many others.  As far as current proponents of man made "global warming" goes I find nothing but nonsense.  I had a physicist at the U of A "going to straighten me out" on global warming so I wrote a paper and sent it to him.  I said if he could find fault I would buy him lunch.  So far I have purchased no lunches.  I had my paper translated into Russian and it was presented to a very prominate hydrologist in the Agricultural City near Novosibirsk, Siberia.  He agrees with me.  I could go into much more detail but space is short.