Spanish Abstract: En este ensayo abordare la justificacion y la naturaleza de esta incipiente comunidad humana global en relacion con la comunidad internacional de los Estados-nacion. Esta dividido en tres partes. En la primera, aporto cuatro argumentos para la instauracion de esta comunidad humana global. En la segunda, describo las caracteristicas de esta comunidad global desde una perspectiva juridica. En la tercera, proporciono algunas ideas acerca de la manera en que se debe organizar esta emergente comunidad global. English Abstract: The international community is being transformed into a new global community made up of new members, inspired by new principles, and based on new ideas. In the first part of this paper, I aim to justify the existence of this emerging global community using four arguments that can be summarized by the Latin terms: dignitas, usus, necessitas, and bonum commune. In the second part, I argue that the new global human community comprises persons, not nation-states; that it is universal in nature; that membership in it is compulsory; and that it is incomplete, and complementary to other forms of community. These features of the new global human community will determine both the structure of its legal system and its legal authority.