Global justice is a theory that exists within the broader school of cosmopolitanism, which focuses on the importance of the individual as opposed to the state, community or culture. Cosmopolitans take the individual as their starting point because they believe that all human beings have equal moral worth and therefore have the right to equal moral consideration. In this sense, even if cosmopolitans disagree on how to ensure that individuals are the subject of equal moral concern, the focus of these differing approaches is the value of the individual. This focus on the moral importance of the individual has led some cosmopolitan scholars to critically engage with theories of justice, which are traditionally confined to the state and contained within the realm of political (not international) theory. This endeavour has led to the theory of global justice, which seeks to investigate the question of how best to secure a just life for all individuals on Planet Earth, regardless of their nationality or status.