That is the real problem with the whole debate. It is centered on "humans have cause climate change." If the reality is that the sun is causing climate change or, "Climate change happens in cycles," which it has since the earth formed, then the response and the path forward is very different from the ones currently proposed.
EDIT: You know, in a way, saying climate change is human responsibility is enabling us to avoid doing what we have to do now. For example, if sea levels will continue to rise for 100 years, we should stop all new coastal development. Saying humans can stop the warming and lower the sea levels allows us to keep building on the coasts. Essentially, saying, "In the future, we can stop climate change" allows us to do nothing in the present.
Imagine the difference if we knew it was not caused by humans or in fact, there is nothing we can do, the planet will continue to get hotter for 100 years, then we start building cities underground, moving civilization to the poles of the earth, inventing more heat tolerant crops, better local climate control, etc.