Globalisation is about transnational politics. While nation-state governments increasingly struggle with this new politics, which moves beneath, between and beyond national borders, others entities like transnational corporations have flourished. But it is not just business which increasingly bypasses these traditional boundaries. Environmental groups are also moving though this transnational space, and their politics are defined by such qualities as fluidity, ambiguity and rapid changes in identity, mission and structure. In this book, the politics of environmental movements are presented as particularly salient examples of these new phenomena. Drawing on fieldwork from Europe, Asia, America, Africa and the Middle East, the contributors address a range of trans-national processes: efforts to construct common agendas transnationally; the diffusion of new repertoires of environmental protest; the role of environmental groups in the construction of new modes of environmental governance; how neo-liberalism affects local environmental activism; evidence of transnational influences and pressures on environmental politics in repressive regimes; and the dilemmas of defining questions of environmental justice and post-colonial environmental politics without suppressing the differences between environmentalism in different countries.