Climate change represents the possibility of losing quality and quantity of the existing ecosystems around the world. While dealing with the risks caused by climate change we need be aware about the various vulnerabilities across the different ecosystems or biodiversities on planet Earth. In order to mitigate these impacts, the process of adaptation across each ecosystem is important. But the process of adaptation and mitigation of the effects of climate change has to be done on a regional or local level. The challenge at this level is not only to assess vulnerabilities and risks to each ecosystem but to develop policies to adapt so as to achieve sustainability. In this paper we focus on the ecosystem of water and study the different impacts to it from the perspective of regional Australia. We then propose a digital ecosystem based architecture in a multi system approach which can be utilized for water sustainability adaptation process in Regional Australia
