One-third of Australia's vital groundwater reserves is under threat. Here's how you can help
A scientific team from Western Australia says reduced rainfall, over-extraction for agriculture and contamination from mining has caused a decline in the country's vast subterranean water reserves.
Moderated by Tomas Kauer 
A scientific team from Western Australia says reduced rainfall, over-extraction for agriculture and contamination from mining has caused a decline in the country's vast subterranean water reserves.
