Take away politics and there is no discussion to be had, at all. Virtually no credible scientist endorses the view that anthropogenic warming is a "hoax." It all comes for talk radio and paid flacks.
I am all for precautionary principles. I am all for alternative re-newable energy source (not including Nuclear).
But even the measurements for Global Warming let alone Anthropogenic (human activity influence) cannot even really substantiate any warming for the globe using the required measurement tools. i.e. Satellite pixel arrays of IR micro bolometers haven't been around prior to the early 1990s (not isolated mercury thermometers located at sample locations subject to error greater than a standard deviation than the so called temperature rise since the 1850s) and when they were available they returned some shocking results for the proponents of AGW. There was virtually no global warming/cooling since the mid to late 1990s. The email scandal of the East Anglia AGW centre 'scientific experts in climatology' were about hiding this fact from the public. This has happened before with the US/Soviet nuclear industry and safety problems of the GE boiling water reactors. Even I knew of the problems of various reactor designs whilst studying them for my 'Higher' nuclear physics course at High School a year before Soviet RBMK reactor blew up. When I hear the term 'expert' then all you need to think is;
Who decided to put half a dozen GE boiling water reactors on a major Japanese fault line subject to Tsunamis? Yep one of those 'experts'
http://www.youtube.com/watch?v=EviEN0ScOwgor how Money, politics, sales dominate and how the 'engineering/scientific experts' learn to shut up if its their best interest to do so.