The problem, in a nutshell, faced by those who have hypothesized that Man's CO2 release is causing, or will cause, a dire change in climate, is that some observations made by reputable climate and atmosphere scientists are utterly inconsistent with the hypothesis. An hypothesis can not be accepted as correct until it is consistent with all observations. A further problem is that there are observations consistent with the CO2 caused climate change hypothesis that are equally consistent with alternative hypotheses.
There are those who maintain that it is better to be safe than sorry and an once of prevention is worth a pound of cure. " What if our CO2 release really is wrecking the climate?" they say. From a scientific viewpoint, however, as long as there are inconsistent observations, the hypothesis is wrong. It makes no sense to base ones actions on an hypothesis that is wrong.
Sadly, the would-be prevention in this case is hugely expensive and disruptive. If it weren't, there wouldn't be much harm in doing something that makes no sense from a scientific standpoint. In the present case, however, great harm could result from proceeding down a road that the current science is telling us is the wrong road.
The prudent thing to do is to wait until the peer review process is complete and the question of who is right and who is wrong can be decided with as much certainty as any question of this sort can be. This isn't a question that can be correctly decided by polls or in the political arena.