Architecture, Building and Planning - Theses
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ItemCultural adaptation to climate change and the 1997-2010 drought in the suburban landscape of Melbourne, Australia( 2013)The period of drought from 1997 to 2010 in Melbourne, Australia saw significantly below average inflows into Melbourne’s reservoirs due to persistent high temperatures and low rainfall, conditions that climate change modelling suggest will occur more frequently in the future. In response to a dwindling water supply, water restrictions were enacted by the Victorian government to reduce water demand at the same time as infrastructure projects were commissioned to increase the water supply. These water restrictions limited the use of water outdoors, and had negative impacts on the suburban vegetation. A range of technical and behavioural adaptations could be made to mitigate these negative impacts by reducing the need for the use of potable mains water in the landscape, and this research explored the hypothesis that, over the course of the drought, changing attitudes towards climate change and water use in the suburban landscape resulted in behavioural adaptations by suburban dwellers in Melbourne that led to observable changes to the suburban landscape of Melbourne. Three research methods were used to investigate relationships between changes in Melbourne’s suburban landscapes and people’s attitudes towards water conservation in the context of drought and climate change, namely: (1) a content analysis of newspaper articles related to water restrictions in Melbourne to look at the ways in which the topics of drought and climate change had been addressed within the public discourse; (2) an observation of the suburban landscape of Melbourne using Google Street View and aerial photographs to identify the observable adaptations that have taken place in a sample of 530 front yards; and, (3) a questionnaire survey of households in Melbourne to assess their attitudes towards their own private landscapes, water conservation and restrictions, drought, and climate change and its impacts. It was found that, both in the newspapers and from analysis of the questionnaire data, people generally agreed with the need to conserve water, especially during times of drought. Belief in climate change, and the need for people to personally take action to adapt to it, was also generally high. Observable drought adaptations in Melbourne front yards were rare, but in the questionnaire many respondents indicated that they had taken steps to conserve water, and some of the sampled front yards had changed between 2004 and 2008 to better adapt to drought conditions. However, the content analysis found that two of the four newspapers studied perpetuated expressions of unscientific climate change scepticism and uncertainty, consistent with the politicisation of the climate change issue. The questionnaire, which employed visual stimuli of front yard scenarios, found that water use requirements did not correlate with overall desirability, which was most strongly correlated with rated visual attractiveness. Despite the general agreement by respondents with regard to the need to conserve water, and their stated willingness to take concrete steps to do so, obstacles remain for successful drought and climate change adaptation, both in the responses of the public to change and the physical transformations of the landscape.