AGW as been established since the late 80s – after 30 years of debate within academia. Now it’s just the details and models being debated. It’s not doctrine, its the most accepted theory with thousands of peer reviewed papers backing it up and a half century of research, which any scientist can try to falsify.
What started out as a typical corporate systemic funded denial program by the oil industry(think tobacco science), morphed into a self-propagating industry itself. During the late 90s the oil industry was offered cap and trade as compensation and they backed off. Now, mostly the denial comes from economic think tanks coaxing non-related scientists to sign petitions at trade shows for some type of funding.
At this point, it’s just a political tool and/or a money making scheme. I wouldn’t worry about any legislation “hurting” the economy – it’s own inherent flaws sow the seeds of it’s own destruction.
In the meantime, just sit back and watch the political freak show emerging. It’s sure to get worse.