Document Type : Original Article


President of the Canadian Institute for International Law Expertise (CIFILE), Toronto, Canada


Principles of international environmental law play a fundamental role in developing and consolidating international protection of environment. Understanding current and growing principles of international environmental law can guide the interpretation of legal norms and regulations. Moreover, these principles are included in several international treaties and national regulations to protect the environment. Some principles originated from public international law, such as State Sovereignty or International Cooperation. Still, others are related exclusively to international environmental law, such as the principle of prevention and the Precautionary principle. This article provides essential knowledge about the Principles of International Environmental Law. These principles reflect the legal foundations and play a crucial role in the creation, development and application of this field of law. By definition, they are superior to ordinary rules, which should be based on these principles. Results are discussed in terms of applying these principles and their implementation at national and international levels.


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