( this is my first entry and probably rambles. I am sorry for that if so)
Well, it is actually about both, but it is mostly about faith, the science part is actually about faith too. I come from a very religiously conservative family who's ultimate regret is that I have a degree in history and another in anthropology rather than being a minister. Worse, Rome, England and medieval Christianity are my areas of historical study. Which means I know just how different modern Christianity is to the original and where the changes happened.
I digress, though that bit is relevant. Most of my family deny global warming, or climate change, except they don't, but its really not bad, but it is made up. Logic doesn't run strong in this thought. My co workers, people on the web and often random people at events are just the same. Mostly they think it is a demoncrat (a co-workers word) lie, or maybe something made up by alarmists who overstate it. Often it is made up by athiests, or socialists or pinko commies. So I started not attacking or disagreeing with them, but rather asking why they did not believe. This often goes hand in hand with not "believing" in evolution as if it was a religion thought, which I suppose to a creationist it is. Anyway. The two tie directly in together I found from my totally unscientific micro study.
More below...
Creationists accept that God making the world is literal and figurative truth. He also did it in seven days. Some will admit that maybe seven days is something different to God, but most do not give it that much thought. God made mankind personally with an after thought to womankind. He said go forth and multiply. Thus God gave earth to man (and also gave women to men, so they should just do what they are told so there). This bascially makes people the pinnacle of creation, and that all the earth is here for man to rule over and till and exploit. It is ours. Women can come along too, we need them to make more men.
God in this world view is an active creator. We pray, and he does things like saves people from evil, sins, communists, wins their sports events and generally is completely interactive in all things. Everything good we have, we get, or that we do is given to us as a blessing from God. He blesses each person, or damns them based on Christianity, lifestyle sex etc. When bad things happen "God has a plan"( cause nothing says awesome diety like a six year old kid with leukemia). It is never a persons fault its GOD'S PLAN.
if God gave mankind the earth, and God is always in control then no matter what we do we are fine as long as we trust God. We don't have to take responsibility for anything. It rained? God did it. Won the lottery God did it. Got hit by a bus and left a widow and two young kids, God has a plan for that.
But if climate change is real, global warming is a major threat to mankind. We are ruining our world. Someday it will be so messed up it will make most of it unlivable. Is that God's plan? Many say yes, and if it wasn't then God would stop it. Can't fight God. But what if it is not God's plan? What if it is just us being reckless. Does that mean God doesn't control everything? if he doesn't then maybe he doesn't make Tim Tebow win games, or people win the lottery. Maybe they are just lucky, or work hard to be an athlete. People might have to take responsibility for their actions and think about the future. For many it raised the fear that God might not be active at all in the world. If science is right nd we evolved from an ape, rather being made by God in the mudpit, then our entire place in the universe is challenged. This leads to the fear that God either is a distant creator, or worse to the religious mind, that God might not care about individuals at all. Even worse, he might not actually exist at all.
It is that fear, the fear that the world is not directly under the control of God and thus might be like the scientists say, that makes denial of climate change so strong. At least among the devout I have spoken too. The other factor is blatant greed of course, but thats something totally different.
These ideas of irrelevance fueled the cosmic horror genre at the turn of the century, as seen in the works of H.P. Lovecraft and others. I think that same crisis is happening to the evangelical right all over again.