from your link bluey....... "Understanding how climate change will impact Australia’s rainfall patterns into the future will help us make key decisions in sustainable water management and agriculture."
"The most obvious change we have seen in Australia is the decline in rainfall in south-western Australia since the 1970s, as the subtropical high-pressure belt has expanded and the westerly winds that bring the region much of its winter rain have moved south. Annual rainfall in south-western Australia has decreased by 10 to 20 per cent. This has had a profound impact on Perth’s water supply, which hasbecome increasingly relianton groundwater and desalination. Inflows into dams have become unreliable, dropping almost to zero in the driest years such as 2010."
