You can be both a skeptic and a believer in climate change.
Cimate change may be real but the extent that man has caused it is still being debated, the extent that man can stop it is also still debated. What is beyond debate is what Australia's contribution to climate change is .. it is NIL... and what any changes Australia makes to its carbon emmissions will have on the climate ... less than NIL.
The irony in all this is that Australians will be paying a tax to consume their own resources, when those same resources will be exported to other countries whose consumers will pay zero taxes to consume them.