A new type of legal reasoning must find something else as a basis in order to avoid the arbitrary outcome of balancing between the interests of economic development on the one hand, and the environmental protection on the other.
This basis must be found in the World’s diversity of cultures. The specificity of international law itself makes it necessary “to be multi-disciplinary, drawing from other disciplines such as history, sociology, anthropology, psychology and such wisdom as may be relevant for its purpose.”
It does not appear that Judge Weeramantry is the only voice for such interdisciplinary approach to international law among judges.
He himself quoted a well-known judge, a former President of the International Court of Justice, Sir Robert Jennings who wrote that “there should be a much greater, and a practical recognition by international lawyers that the rule of law in international affairs, and the establishment of international justice, are inter-disciplinary subjects.”