I certainly believe that fossil fuel gases are contributing to global warming. However, science is very divided on this subject. I guess you can argue that science is also political.
Jeff Beradelli is a big proponent of man made emissions causing the warm up. I asked him to go on Sean Hannity's show, but he declined. While Hannity is a staunch conservative, I think he would have given Jeff a fair shake, if he stuck only to the science and presented it well.