But the point is 'more facts'. If he has more facts and can prove them and prove that they discredit the existing consensus, then he should present them within a scientific forum and get them accepted there. Your cynical view of scientists is very unfair. If that was the case we'd never make the kind of progress we have. Science only works because anyone can take on the big dogs if they have sufficient proof.
It is true that this particular science is not far enough along to offer definitive answers. But, as I said above, that should lead one to being more careful about what we do to the planet, not less.
BTW, in the youtube vid above Dr Spencer DOES indicate that he shared his findings at a recent seminar, and did not have "serious objections" from the other scientists who attended. I don't know who attended this, or what the demographic of the attendees was... but he seems to propose his findings as you put it, "present them within a scientific forum and get them accepted there." Penn and Teller had a great episode on their Showtime series Bull{censored}! about the huge profits being generated by the anti-global warming community... as soon as there's money to be made, my own BS radar goes off big time. Throughout history consensus based "scientific thought" has often been found to be wrong in later times... Remember when the best medical science included "bleeding" a patient to help them improve. How about at the time of the invention of the railroad the "proven" belief that above a certain speed, (I think 30 mph), all the air would be sucked out of the rail cars, and everyone inside would die. What about smoking? There was a time when the medical community's consensus was that it was not only OK to smoke, doctors actually were spokespeople for tobacco products. In their own time, the scientists WERE the leading thinkers of the day, and they DID believe their own ideas. Maybe global warming will turn out to be the same. M