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International Environmental Convention plays a critical role in the overall framework of environmental laws. Complementing national legislation and bilateral or regional agreements, Conventions form the over-arching international legal basis for global efforts to address particular environmental issues. International environmental law aims to develop an integrated legal approach to environmental management and solve environment related conflicts at regional and global levels. Today, the world has more than 1100 multilateral agreements, about 1500 bilateral, and more than 200 regional legislations (Mitchell, 2015).The implementation of all these environmental laws is facilitated by institutions like the United Nations and its dedicated agencies, international non-governmental organizations (NGOs) like the International Union for Conservation of Nature (IUCN), Friends of the Earth (FOE), Green-Peace International, World Wide Fund for Nature (WWF), Regional institutions like the European Union (EU), the Commonwealth, Association of South East Asian Nations (ASEAN), South Asian Association for Regional Cooperation and so on, as also special purpose institutions like the International Whaling Commission (IWC), International Seabed Authority (ISA), International Tribunal on Law of the Sea (ITLOS). These Institutes guide the behaviour of particular countries and regions for their effective and timely implementation of these laws.

The main method available under international law for countries to work together on global environmental issues is the Multilateral Environmental Agreement (MEA). MEAs are agreements between states (countries) which may include obligations varying from more general principles about a particular environmental issue, through to definitive actions to be taken to achieve an environmental objective. The broad areas where international agreements on environment have focused include the atmosphere, hazardous substances, marine environment, terrestrial resources, nature conservation, and nuclear safety and transboundary resources. Likewise, the key principles followed comprise Sustainable Development, Intergenerational Equity, Common but Differentiated Responsibility, Precautionary Principle, Polluter Pays Principle and Sovereignty over Natural Resources.