The world is becoming deeply interconnected, whereby actions in one part of the world can have profound repercussions elsewhere. In a world of overlapping communities of fate, there has been a renewed enthusiasm for thinking about what it is that human beings have in common, and to explore the ethical basis of this. This has led to a renewed interest in examining the normative principles that might underpin efforts to resolve global collective action problems and to ameliorate serious global risks. This project can be referred to as the project of cosmopolitanism.

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