These things are relatively easy to demonstrate with experiments. I went to a church that believed in a 10,000 year old earth but accepted 'micro-evolution' because it was so easy to demonstrate. (Note: You may safely put me in the climate change denier/skeptic, etc category, but I believe in evolution and old round earths, and vaccinate my kids)

The problem with 'climate change' aka. 'observed warming is attributable to humans therefore we must start recycling, blah, blah, blah' is one it's mostly political, two, the science is not clear in a 'These are our predictions we passed the predictions', eg. it's clear the earth is warming, but it's also clear the computer models don't work, and it's really not clear what will happen if the warming continues, because a) we don't know how warm it will be, and b) we don't know what that warmth will do.

When people say words like consensus instead of hypothesis you can tell they are having a political debate that involves science rather than a scientific debate that involves politics, in the exact same way that the intelligent design people do the same thing.