The Center for International Environmental Law (CIEL) and the International Human Rights Program at the University Of Toronto Faculty Of Law…[have published] a new tool to aid non-governmental organizations defending the public interest in international investment litigation. The Guide for Potential Amici in International Investment Arbitrations explains when and how NGOs can strategically intervene as a third party in international investment arbitrations as an amicus curiae (friend of the court)…[T]he Guide…focuses on the potential of filing amicus submissions at the International Centre for Settlement of Investment Disputes (ICSID), which specializes in disputes between governments and companies…As amici, NGOs can highlight human rights concerns and direct the tribunal’s attention to issues relating to the public interest. Amicus submissions are powerful tools allowing NGOs to present legal arguments in defense of public interest to counterbalance the power and influence of corporations…