machtuk,
Only if they have fuel supplies??
Seriously, this issue has been around for a long time, neither major political party has taken it seriously, and I suppose the Watermelons think "no fuel" will cut emissions and immediately save the Great Barrier Reef, or the Lesser Green Spotted Ohmagoolies bird.
To say that the relevant "public" service departments have taken a relaxed (read ignored, despite Ministerial requests) attitude would be the understatement of the decade. (so far).
The answer, there is no short term answer, do we even have the on-shore storage capacity to achieve a 90 day capacity.
Maybe the country should buy a couple of dozen ULCCs, fill them up and turn them into a new version of "Nev's Navy" moored off the coast.
Tootle pip!!