So for those in denial of climate change/global warming, what are their claims?

…and this could fall outside the realm of denial (e.g. ‘i just don’t care’)...

I’m in a grad class (w/@sushilovinfun) right now and we are studying deeply the roots of climate change…and I’d like to come armed with examples or arguments against the permeating feeling that something like climate change cannot be denied (my personal opinions aside, for sake of discussion).