I have witnessed Fundamentalist Evangelicals saying there is nothing to be concerned about because God created the Earth and he will not allow it to be ruined.
Right, and this is what is pernicious about the religious right-wing ideologies we see. No only do they deny much of the harm we are doing to the planet as part of group-think, but they assume -- as you rightly point out -- that this is not possible, because there is a man in the sky keeping a close eye on things.
The reality is that humans are good at responding to catastrophes and things that cause immediate disruption, but in the case of the environment, we are very slow to react, because there is an apparent sense of normalcy. After all, even as we inch along towards the precipice, our lives seems to be just fine. There is still food on the table, the car still works, paycheck still coming in, favorite series is still on TV. What could be wrong?
I suspect that the rate of response will increase as commensurate with the impact. So once seas rise to the point where flooding makes life impossible (Miami is close to that) in many cities, and weather patterns start shifting, causing agriculture to collapse, or causing massive population displacement, then of course government will take drastic measures, at a time when it will clearly be too late.
