Those responses seem like something from the people who don't believe there's an actual problem. Scientists are pretty much universally convinced, the only ones who aren't are paid by big oil and the Koch brothers - that means they are lying for money. We don't debate whether the earth is the center of the universe or is the earth flat, because debating that would be a false equivalence of equal chance, but one side of those debates is absurd. We are basically at that point on the question of does human activities increase global warming (yes), will this be really really bad (yes), can we do something about it (yes, but its hard to decide). Let's not waste time arguing about whether the earth is flat, let's move on to figuring what to do about it.