Part IV introduces material from two areas of social research, one with homeless people’s organisations in the San Francisco Bay area, the other from cultural projects in context of urban regeneration in east London; and ends with an analysis from an ecological viewpoint of turbulence as the planetary condition. The first two chapters here are longer than others in the book, justifiably so given the inclusion of hitherto unpublished empirical research and, in the first of these, extensive quotation from individuals consulted in its course. To give space to these voices, which are marginalised in most other contexts, seems important and more than a gesture. The thread which runs through all three chapters is their concern with how social processes are shaped. It could be asserted that all the chapters in the book deal with this, and that its title frames them accordingly. But in this part, questions of how the frameworks, mobilities and practices discussed in the previous three parts feed through in highly specific situations, localised by constituency as well as geography, are addressed more directly.