There's enough proof that we're destroying our environment on a grand scale - literally the only place that we can survive as a species. All of what you said is just rationalization for the kind of behavior that has gotten us to this point and will continue far into the future. It's easier to deny anything is wrong than it is to do anything about the problem. And I'm not at all surprised by how many climate skeptics there are here - intellectuals and really fucking smart people who are incredibly good at rationalizing their behaviors and beliefs to avoid the feeling of having to do anything and who think they're able to think about the subject matter more clearly and productively than the scientists who work on it day in and day out.