Australia supplies a large fraction of the coal burned by Japan, China, Korea and India. Mentioning the CO2 emissions of Australia itself is missing the point completely.
Yes. I was contesting your point about the world making Australia transition. Right now they're buying more of it.
Now, you can try to run on a platform of banning those exports, but it's a tough sell because it affects the revenue of many voters, and Australia is a democracy. It's tough to vote away someone else's living.
Hillary Clinton bragged about putting coal miners out of a job (something she later admitted was stupid) and got an electoral defeat in West Virginia.