Since fall 2012, Daniele Valisena has been a PhD candidate at the Royal Institute of Technology (KTH) within the Environmental Humanities Laboratory (EHL) in Stockholm. He has a background in history and humanities, but in the last few years has focused on migration history, the history of memory, geo-history, and socio-history. More recently, he has begun to work in the field of environmental history, developing an interest in urban political ecology. Daniele studied at the University of Bologna; he holds a bachelor’s degree in modern history and a master’s degree in contemporary history. After his MA, he worked as a research assistant in the Laboratorio di Storia delle Migrazioni at the University of Modena, focusing on mining landscapes, urban socio-history, and migration history. His PhD thesis aims to question the correlation between migration, in particular “new mobility,” and ecological grassroots practices, following the lessons of Jacques Revel and Michel de Certeau. Migration history has tended to overlook the relationship between migration and environment, but migrants are some of the most active users of public spaces—city parks, street markets, gardens, and so on—and their activities mark these places. In addition to these practices, urban gardening is becoming more and more relevant in many world cities, including Berlin, Paris, and London. One of the purposes of his research is to investigate how these ecological practices from below influence migrants’ processes of identity construction. At the same time, new citizenship patterns are established between transnational communities, and their newfound ecological agency can become an important factor in the re-politicization of the social environment.