  Appealing to accounts of ownership of resources, some philosophers draw out important implications for diverse global justice debates. Mathias Risse argues that we all, collectively, own the resources of the earth and this has profound implications for a range of global justice issues, including immigration. When people are under-utilizing their “rightful shares” of territory, they cannot complain when co-owners would like to occupy some of it.  Some theorists concerned with environmental issues also discuss our rights with respect to natural resources. Some argue that we have equal rights to access the earth’s resources. Tim Hayward, for instance, argues that we have equal rights to ecological space (Hayward 2005). This is often appealed to when there is a perception that we have exceeded our share, such as in levels of carbon emissions and consumption more generally.