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More details/abstract: Across the world, 'green grabbing' -the appropriation of land and resources for environmental ends -is an emerging process of deep and growing significance. The vigorous debate on 'land grabbing' already highlights instances where 'green' credentials are called upon to justify appropriations of land for food or fuel -as where large tracts of land are acquired not just for 'more efficient farming' or 'food security', but also to 'alleviate pressure on forests'. In other cases, however, environmental green agendas are the core drivers and goals of grabs -whether linked to biodiversity conservation, biocarbon sequestration, biofuels, ecosystem services, ecotourism or 'offsets' related to any and all of these. In some cases these involve the wholesale alienation of land, and in others the restructuring of rules and authority in the access, use and management of resources that may have profoundly alienating effects. Green grabbing builds on well-known histories of colonial and neo-colonial resource alienation in the name of the environment -whether for parks, forest reserves or to halt assumed destructive local practices. Yet it involves novel forms of valuation, commodification and markets for pieces and aspects of nature, and an extraordinary new range of actors and alliances -as pension funds and venture capitalists, commodity traders and consultants, GIS service providers and business entrepreneurs, ecotourism companies and the military, green activists and anxious consumers among others find once-unlikely common interests. This collection draws new theorisation together with cases from African, Asian and Latin American settings, and links critical studies of nature with critical agrarian studies, to ask: To what extent and in what ways do 'green grabs' constitute new forms of appropriation of nature? How and when do circulations of green capital become manifest in actual appropriations on the ground -through what political and discursive dynamics? What are the implications for ecologies, landscapes and livelihoods? And who is gaining and who is losing -how are agrarian social relations, rights and authority being restructured, and in whose interests?

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In the context of the high-profile controversy that has unfolded in the UK around the measles, mumps and rubella (MMR) vaccine and its possible adverse effects, this paper explores how parents in Brighton, southern England, are thinking about MMR for their own children. Research focusing on parents' engagement with MMR has been dominated by analysis of the proximate influences on their choices, and in particular scientific and media information, which have led health policy to focus on information and education campaigns. This paper reports ethnographic work including narratives by mothers in Brighton. Our work questions such reasoning in showing how wider personal and social issues shape parents' immunisation actions. The narratives by mothers show how practices around MMR are shaped by personal histories, by birth experiences and related feelings of control, by family health histories, by their readings of their child's health and particular strengths and vulnerabilities, by particular engagements with health services, by processes building or undermining confidence, and by friendships and conversations with others, which are themselves shaped by wider social differences and transformations. Although many see vaccination as a personal decision which must respond to the particularities of a child's immune system, 'MMR talk', which affirms these conceptualisations, has become a social phenomenon in itself. These perspectives suggest ways in which people's engagements with MMR reflect wider changes in their relations with science and the state. r

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