So totally not a climate skeptic, but part of the reason for this is because models are often wrong, and the more complex the system, the more likely it is to be off I think.

So to be fair to humans, skepticism is often rational, in the sense that science of complex systems can be off.

The part I have not totally understood is that there are good reasons to be more energy efficient and ecologically sensitive even in the absence of climate change per se.