Climate change long term is not an exact science. We cannot even predict weather a week ahead, and we think we know what will happen in 2100. To a large degree it seems politically driven
There is a lot more on the website than just a graph. Obviously that's all that's posted here. And CSW is many things, but he is not a scientist studying climate change.
Also, did you get what I was saying or did you just hear "climate change denier"? "The scientists" of non exact sciences are quite controllable given the right circumstances