Australia is comfortable doing their per capita bit plus extra destroying arguably one of the most valuable biological assets in the world (the Great Barrier Reef), so it’s kind of sad to see the hypocrisy.
How so is Australia actively destroying the Barrier Reef over and above the world as a whole? The main issue is coral bleaching, which seems to driven by sea temperature rise - Australia only contributes maybe 2% of global CO2 emissions at worst.
Australia is generally figured to have the highest, or very nearly the highest, per-capita emissions of the developed world, and that's not accounting for its coal exports (which are the second largest in the world).
