Please define creationism or denial of climate change, because I think you are vastly oversimplifying what other think/believe. I think you are referring to the origin of man and whether or not climate change is anthropomorphic or natural. Since science cannot prove something that isn't repeatable (check out the scientific method), I think that the origins of man cannot be proven--in fact, I think there is room for debate. As to the causes of climate change, I think a large debate continues about all the causes and over what is the best temperature for the earth.
Of course, you could be right, but I think your argument is bogus.