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AbstractCommunication departments of international organizations (IOs) are important intermediaries of global governance who increasingly use social media to reach out to citizens directly. Social media pose new challenges for IO communication such as a highly competitive economy of attention and the fragmentation of the audiences driven by networked curation of content and selective exposure. In this context, communication departments have to make tough choices about what to communicate and how, aggravating inherent tensions between IO communication as comprehensive public information (aimed at institutional transparency)—and partisan political advocacy (aimed at normative change). If IO communication focuses on advocacy it might garner substantial resonance on social media. Such advocacy nevertheless fails to the extent that it fosters the polarized fragmentation of networked communication and undermines the credibility of IO communication as a source of trustworthy information across polarized "echo chambers." The paper illustrates this argument through a content and social network analysis of Twitter communication on the Global Compact for Safe, Orderly and Regular Migration (GCM). Remarkably, instead of facilitating cross-cluster communication ("building bridges") Twitter handles run by the United Nations Department of Global Communications (UNDGC) seem to have substantially fostered ideological fragmentation ("digging the trench") by their way of partisan retweeting, mentioning, and (hash)tagging.

As the world moves on from the climate agreement negotiated in Paris, attention is turning from the identification of emissions reduction trajectories—in the form of Nationally Determined Contributions (NDCs)—to crucial questions about how these emissions reductions are to be delivered and reported within the future international accounting framework. The experience to date shows that, if well designed, emissions trading systems (ETS) can be an effective, credible, and transparent tool for helping to achieve low-cost emissions reductions in ways that mobilize private sector actors, attract investment, and encourage international cooperation. However, to maximize effectiveness, any ETS needs to be designed in a way that is appropriate to its context. This Handbook is intended to help decision makers, policy practitioners, and stakeholders achieve this goal. It explains the rationale for an ETS, and sets out a 10-step process for designing an ETS – each step involves a series of decisions or actions that will shape major features of the policy. In doing so, it draws both on conceptual analysis and on some of the most important practical lessons learned to date from implementing ETSs around the world, including from the European Union, several provinces and cities in China, California and Québec, the Northeastern United States, Alberta, New Zealand, Kazakhstan, the Republic of Korea, Tokyo, and Saitama.

In ihren Beiträgen verbinden die Autoren grundsätzliche philosophische Überlegungen zur grundlegenden Bedeutung von Menschenwürde für die Menschenrechte mit konkreteren Forderungen, wie mit der Befriedigung lebensnotwendiger Bedürfnisse umzugehen und was zur Beendigung von Armut notwendig ist. Ihre rechtlichen und politischen Argumente stützen sich auf jüngere Rechtsprechung regionaler Gerichtshöfe und internationaler Menschenrechtsorgane. Sie berufen sich auf die Verpflichtungsdimensionen der Menschenrechte und fragen nach der Verantwortlichkeit für deren Umsetzung.Die Autorinnen kommen aus Universitäten in Deutschland, der Schweiz, den Niederlanden und dem Vereinigten Königreich.