China has cut off its importation of Australian coal. It will presumably burn Chinese coal instead.

This could teach Australia to invest in something less damaging than coal mining. But I fear that the Australian government will be so desperate for China to resume buying coal that it will break and bow down to China. That would be very bad for freedom in the world.

The Australian government has a few oppressive policies — towards immigrants, towards software developers. Towards whistleblowers that reveal its dishonesty and crimes. However, in general it is much better than China.

In regard to global heating, to the first order this makes no difference. Australian coal and Chinese coal are both very damaging.