Increasing attention has been drawn to the risk posed by air pollution, a risk that has wide-ranging effects (on the environment, health, the economy, culture, urban design and politics). New environmental movements and political agendas have emerged in the past 10 years. A growing number of social groups have been formed to express their concerns and challenge established laws and rules. This paper will borrow Ulrich Beck's concepts of risk, reflexivity and sub-politics to analyse the new social movement that addresses air quality in Hong Kong. While previous environmental problems were considered manageable, air pollution is a risk that seems to defy solution. As a result of the institutional failure to deal with this risk, there has been a new alignment of interests and the emergence of a new form of politics-a sub-politics that leads to a sharing of power between established and informal politics, and the government and society. Although established political institutions have been receptive, altering the rules and increasing public participation, the extent of sub-politicization is still limited. This is due, in part, to the overall absence of reflexive self-regulation among individuals in the society, which might lead to a state of 'disorganized irresponsibility'.
