We live in a time of pressing planetary challenges, many of which threaten catastrophic change to the natural environment and require massive and novel coordinated scientific and societal efforts on an unprecedented scale. Universities and other academic institutions have the opportunity and responsibility to assume a leading role in an era when the destiny of the planet is precisely in the hands of human beings. Drawing on the Planetary Health project promoted by the Rockefeller Foundation and The Lancet, Pompeu Fabra University launched in 2018 the Planetary Wellbeing Initiative, a long-term institutional strategy also animated by the United Nations Sustainable Development Goals (SDGs). Planetary Wellbeing might be defined as the highest attainable standard of wellbeing for human and non-human beings and their social and natural systems. Developing the potential of these new concepts involves a substantial theoretical and empirical effort in many different fields, all of them interrelated by the crosscutting challenges of global complexity, interdisciplinarity, and urgency. Close collaboration of science, humanities, and culture is more desperately needed now than ever before in the history of humankind.
Individual decisions about how to exercise the legal right to procreative liberty may generate either positive or negative externalities. From within a resource egalitarian perspective, such as that of Ronald Dworkin, it can be argued that procreative justice is asymmetric in the following respect. Justice need not require that parents be subsidised if they produce a public good, yet its ideal achievement may require their activities be taxed if they threaten to produce a public bad.
Th omas Pogge's Global Resources Dividend relies on a fl at tax on the use of natural resources to fund the eradication of world poverty. Hillel Steiner's Global Fund taxes the full rental value of owned natural resources and distributes the proceeds equally. Th e paper compares the Dividend and the Fund and defends the Global Share, a novel proposal that taxes either use or ownership, does so (when possible) progressively, and distributes the revenue according to a prioritarian rather than a suffi cientarian or egalitarian principle.
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