There is a rich literature by geographers on the spatial imagination and ambition of conservation, and particularly the long-established strategy of creating protected areas such as national parks. This report highlights five ways in which the spatial ambitions, imaginations and practices of conservation are changing. First, appetite for the expansion of protected areas continues to grow, with proposals for marine reserves and up to half of the earth under protection. Second, substantial intensification of agriculture is proposed to free up land for such expansion, a policy of land sparing. Third, areas being protected are increasingly privately owned, and conservation is serving as a powerful form of legitimization of large-scale private landholding. Fourth, in many countries conservation management is being extended beyond formal protected areas in mosaics of public, private and community land. Fifth, the political and material technologies used to secure conservation territories, like the extension of these territories themselves, raise urgent political ecological questions. Conservation governance physically marks spaces for nature, but also constructs and polices ideas about both nature and society in profound ways, which often go unremarked by conservationists themselves.