Temple University: Carol C. Gould's "Approaching Global Justice through Human Rights: Elements of Theory and Practice"
Read this article. Here, from a more philosophical standpoint, Gould examines the relationships between human rights and global justice. Specifically, she "... argue[s] for a strongly egalitarian principle of justice, namely, ... equal positive freedom (or EPF)." Further, Gould argues that such an approach provides guidance for resolving practical problems associated with distributive justice on a global scale.
Click http://web.archive.org/web/20160610135744/http://paperroom.ipsa.org/papers/paper_2302.pdf link to open resource.