There is ONE REASON to deny it. That is being trapped by corporate and big oil to believe their bullshit. I would not even trust government in the US about it since they wholly are dependable on the petro dollar.

Climate change has a human factor driving it. It is not the only thing influecing it, but it is there. Burning oil that has been forming over tens of thousands of years, releasing it all in hundred years in our environent.....ofcourse it has an affect.

There is a motivation NOT TO BELIEVE in it. The motivation is greed and fuckedup policy of the energy industry and US government.