The Bruntland Report (1987) - Our Common Future sought to set an agenda for a sustainable society. It ought to have caught the imagination of everyone. While common implies known and belonging to the community at large, there is every evidence that sustainability is neither widely accepted nor practised. Why is there such a discrepancy between expressed public concern about environmental issues and actual individual and collective behaviour? However much we look to _technological fixes_ to solve our environmental problems human perceptions, attitudes and behaviours lie at the heart of our unsustainable society. Sustainability is, of course, not just about the environment it involves understanding and acting upon all aspects of our social and economic lives. Environmental problems relate to health problems which in turn can be related to literacy levels and social exclusion. This lecture will examine how recent environmental psychology research is addressing sustainability issues at the global, national, regional and local levels, and feeding directly into government and industry policy-making and planning to achieve a more sustainable society. Issues addressed include: understanding public attitudes towards and sense of responsibility for global climate change, waste minimisation, air pollution and car use; innovative measures to change driver attitudes and reduce traffic speed in sensitive rural areas; and social exclusion and sustainability.