I think it was Ken Miller who put it best, "A lack of consensus does not mean there's a controversy".
What's fun is to find out which scientists (and "scientists") are opposed to a position and then start doing some homework. Who is funding their research? Who is writing them checks? Are they publishing papers hoping to show that there is no climate change while sitting on an advisory board for Exxon, etc?
This is why appeals to authority don't work. First off, even experts can be wrong. Second off, sometimes "experts" can be bought.