Grigoris I. Tsaltas, born in Athens, is an Emeritus Professor of International Law at Panteion University of Social and Political Sciences. He has served as Rector of Panteion University and is the Founding Director of the European Centre for Environmental Research and Training (EKePEK), the Jean Monnet Chair “European Union and Developing Countries” Holder and Member of the Board of the Institute of International Relations of Panteion University. He has also served as a Member of the Boards of the Hellenic Society of International Law and International Relations and the Aegean Institute for the Law of the Sea and Maritime Law and has been a Member of the Association Internationale du Droit de la Mer. In 2012 he was proclaimed chevalier dans l'ordre des Palmes Academiques by the French State.

In the past, he has served as Minister of Environment, Energy and Climate Change, Chairman of the Department of International and European Studies (2010-2012), Vice President of Association Internationale du droit de l'urbanisme (AIDRU), Chairman of UNESCO Attica Club as well as visiting professor at the following universities: University of Madrid (I.C.A.D.E.), Sorbonne, Tilburg, Louvain la Nueve, Dubrovnick, Krakovie, Cadi Ayat, Abidjan, and Cyprus.

He holds a Doctorat D’Etat en Droit (unanimously excellent) in International Law from the University of Legal and Economic Sciences of Nice, a Masters’ Degree from the Institut Européen des Hautes Etudes Internationales of the University of Nice, a Masters’ Degree in Public International Law specializing in the Law of Development from Institut du Droit de la Paix et du Développement of the University of Nice and a Degree in Political Science from Panteion University of Social and Political Science.

His research interests contain policies and international law of development, international law and international policy of environmental protection, international law of the sea, European policies of environmental protection, geography in international studies.