Global warming theory

I love my father so much!  I just got off the phone with him, and he informed me that he knew what causes global warming.  Since he is the nature guru, having the greenest thumb ever, I was curious.  His theory is that global warming is caused by all of the hot air from the politicians.  If they would just shut up and stop their empty promises, they could solve the global warming issues.  Have I mentioned that I love my father?  He makes me laugh!