Wine makers down under are already trying to emphasise the terroir of regions like Coonawarra and Barossa.

ECONOMIST: Australian wine

The same limestone that underpins the Coonawarra wine region has created a spectacular underworld just south of the town of Naracoorte.

CNN: Sampling the bounty of Australia's Coonawarra wine region

The big red-grape-growing regions of South Australia, such as Coonawarra and the Barossa Valley, get enough sun and heat to ripen the fruit every year.

FORBES: Chateau Southcorp

This consistency and volume allows Southcorp, which exports 65% of its bottled wine, to develop global brands (Wynns Coonawarra Estate and Seppelt are two other Southcorp labels).

FORBES: Chateau Southcorp