Australia has had a variable and mostly arid climate as long as humans have been on the continent. Historically observed trends toward increased warming, with rainfall increases in many tropical areas and rainfall decreases in many temperate areas, are projected to continue. Impacts will be geographically variable but mostly negative for biodiversity, agriculture, and infrastructure. Extreme events such as bushfires and floods will increase in frequency and intensity, concentrated in summer. With an economy heavily dependent on coal for domestic electricity generation and as an export commodity, Australians are high per capita contributors to anthropogenic climate change. A quarter‐century of steps to mitigation led in 2012 to a carbon price that has the long‐term potential to shift the economy toward more renewable energy sources. However as in other parts of the world this change has come too late, and is proceeding too slowly, to avoid significant climate change. A heritage of indigenous adaptation, strong volunteer cultures, and contemporary cultural diversity provide Australia with considerable adaptive capacity for gradual changes, but the nation is underprepared for sudden or step changes. We identify four pressing research and policy needs focused on such changes: (1) systematic attention to processes and impacts of negative transformative change, or worst‐case scenarios, (2) improve forecasts of year‐to‐year rainfall and climate variability, focusing on processes and climate drivers that may change in response to higher greenhouse gases, (3) identification and engagement of diverse cross‐cultural resources, and (4) articulation of alternative governance mechanisms that can interact dynamically with strong government. WIREs Clim Change 2014, 5:175–197. doi: 10.1002/wcc.255 This article is categorized under: Trans‐Disciplinary Perspectives > National Reviews

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Rates of car ownership in Australia are among the highest in the world. Private cars have shaped the urban form of Australian cities and the daily routines of their residents, making it possible to fulfil geographically stretched responsibilities for work, family, and social lives. But the dominance of the private car in Australian lives and landscapes should not be confused with universality. Aggregate, population-wide statistics of car ownership and use mask the fact that not all Australians are equally car dependent. In this paper, we report on the results of a household sustainability survey conducted in metropolitan Sydney and Wollongong. Overseasborn persons, migrants, and (some) ethnic minority groups were found to own fewer cars -and to use them less -than their Anglo-Australian and Australian-born counterparts. These differences were not attributable to socio-economic or demographic factors. Our findings, which point towards the existence of diverse cultures of transport within the Australian population, are significant for transport planning and policymaking. Given profound concerns about the environmental implications of car use, the environmentally (more) sustainable transport behaviours of ethnic minorities and migrants should be supported. A shift in research focus away from the most car-dependent groups in Australian society may also be more widely instructive. The transport practices, experiences, and strategies of those who own and drive cars at below-average rates may indeed contribute practical lessons to inform planning for more environmentally sustainable transport futures. Aggregate, population-wide statistics of car ownership and use mask the fact that not all Australians are equally car-dependent. In this paper, we report on the results of a household sustainability survey conducted in metropolitan Sydney and Wollongong. Overseas-born persons, migrants and (some) ethnic minority groups were found to own fewer cars -and to use them less -than their Anglo-Australian and Australian-born counterparts. These differences were not attributable to socio-economic or demographic factors. Our findings, which point towards the existence of diverse cultures of transport within the Australian population, are significant for transport planning and policymaking. Given profound concerns about the environmental implications of car use, the environmentally (more) sustainable transport behaviours of ethnic minorities and migrants should be supported. A shift in research focus away from the most car-dependent groups in Australian society may also be more widely instructive. The transport practices, experiences and strategies of those who own and drive cars at below-average rates may indeed contribute practical lessons to inform planning for more environmentally sustainable transport futures.

Migration from the Global South to Global North is a major feature of contemporary population movements, and provides a lived experiment of the implications of moving from less resource-intensive modes of living towards more resource-intensive ones. Pre-migration practices come together in complex ways post-migration with established norms and infrastructures in destination countries. Here we examine the barriers to and enablers of sustainable practices, synthesising in-depth research from nine different studies in south-eastern Australia in relation to household water use, food growing and transport. The total sample includes 323 migrants from 33 countries. The main barriers include infrastructure and broader patterns of work and society. The main enablers are cultural norms of frugality and preferences for public transport. Barriers and enablers interact in diverse ways. We show that migrants are important contributors to inadvertent sustainabilities, but their contributions may be weakened by infrastructural, structural and cultural barriers. Addressing the diverse capacities of migrants would enhance system change for everyone.