While I believe this to be a good idea superficially, once you consider the ultimate conclusion of having a judge and/or jury decide on what is scientifically sound, is not.
Any judge and/or jury that are nothing more than political hacks could be the arbitors for what would be the worst decision of modern history.
I simply do not trust the legal system to be competent enough to provide a verdict based on fact.
Neither is the "political system" nor the "science system", both of which have their own agendas. Besides, how does one "settle" an issue that is still under investigation?
I would have concerns about this too, but this AGW crap is such a slam dunk to defeat the jury would have to be heavily bribed to go against the facts that are in existence.....