François Picard is pleased to welcome Volker Türk, United Nations High Commissioner for Human Rights. In this wide ranging interview, Volker Türk presents a coherent vision of human rights as the essential framework through which to understand some of the defining global challenges of the twenty first century. Rather than treating migration, climate change, nationality, international law and institutional governance as separate policy questions, Türk argues that they are deeply interconnected manifestations of a broader crisis of solidarity, legality and political responsibility.