There are two major, major water sources/resources in Australia.
One is visible --- the Murray Darling Basin.
The other is not so visible --- the Great Artesian Basin.
Humans have interfered in many and nefarious ways with the Murray-Darling Rivers and their feeders. To try to repair the damage has been a highly controversial exercise. People in remote Australia who depend on artesian water are concerned that fracking will lead to pollution of the Great Artesian Basin and that, should this occur, the basin will never recover and a major and precious resource will be lost to humanity.