Thai cave rescuer Richard Harris and the owner of a popular dive spot in South Australia's south-east say the amount of water used by local farmers should be reduced to save unique wetlands.

In 1857, the Koning Willem de Tweede sank off SA's south-east coast, and researchers are now confident they have found it.

Independent MP Nick McBride has appeared in court for the first time since being charged with assaulting his wife.

They may be river fish, but a truckload of Murray cod will make their new home in a volcanic crater to fight pests and attract tourists.

A toxic algal bloom linked with marine deaths across South Australia has grown to an unprecedented scale and will only be stopped by a change in weather, Environment Minister Susan Close says. 

Steep falls in wool production and sheep numbers in drought-affected South Australia have forced shearers to look interstate and overseas for work or consider leaving the industry.

As South Australia and Victoria continue to face drought and unseasonable heat, there has been a notable absence of major rain systems. So, what's going on?

Firefighters are having to wear clothing contaminated by carcinogens because their equipment is being stored alongside trucks emitting diesel exhaust, according to their union.