Mojca Pajnik is Professor of Media and Communication at the University of Ljubljana, Slovenia, and Senior Researcher at The Peace Institute where she leads a research group on equality and human rights. She has published in the fields of media and political theory, with a focus on populism, social movements, migration, and gender (in)equality.Helge Schwiertz is a postdoctoral research associate at the Chair of Sociology and Social Theory at the University of Hamburg, Germany, and leads the ECSEuro project. His key research areas are social and political theory, theories of radical democracy, citizenship, and solidarity, social movements and urban protests, racism and migration.Donatella della Porta is Professor of Political Science, Founding Dean of the Faculty of Political and Social Sciences and Director of the PhD program in Political Science and Sociology at the Scuola Normale Superiore in Florence, Italy, where she also leads the Center on Social Movement Studies (Cosmos).Franz Bernhardt is a postdoctoral research fellow at Aalborg University, Denmark, and holds a Ph.D. in Human Geography from Swansea University, Wales. His research on the geographies of migration, cities, nationalism, and citizenship has appeared in peer-reviewed journals such as Political Geography and The Geographical Journal.Marko Ribać is a research fellow and an assistant at The Peace Institute, Slovenia. His main research topics range from structural transformations of political, journalistic and economic sphere, populism, authoritarianism and illiberalism to popular protests, social movements and alternative media.

• 1: Framing solidarities in times of multiple crises: Introduction.- 2: Solidarity as care: Multidimensional inequalities and narratives in Italian cities.- 3: Demanding, building, and institutionalizing infrastructures of solidarity in Switzerland.- 4: From the ghettos to the camps: interrelational solidarity between housing and migration regimes in Denmark.- 5: Discursive practices of solidarity, commoning, and collective subjectivation in Berlin and Hamburg: Framing de-privatization and socialization.- 6: Facing the polycrisis storm: divergent forms of solidarity in Slovenian contentious discourse framing.- 7: Framing and politicizing solidarities: Conclusions.