Humanity is currently in the grip of deep institutional denial concerning the adequacy of its institutions for dealing with serious intergenerational challenges, such as global climate change. In response, we should call for a global constitutional convention focused on developing new institutions to protect future generations and further their interests. This chapter presents ten initial guidelines for how to construct such a global constitutional convention. Although each follows as a fairly modest and natural inference (a ‘baby step’) from the purposes of the convention itself, the implications stand in sharp contrast to the status quo and to most conventional discussions of reform. The guidelines are, thus, both modest and radical. As a result, the global constitutional convention is, perhaps, just the kind of realistic utopia that we need.