Explanation:

Bonn Convention :

• It is also known as the Convention on the Conservation of Migratory Species (CMS) of Wild Animals.
• It was adopted in 1979 and enforced in 1983.
• It provides a global platform for the conservation and sustainable use of migratory animals and their habitats.
• Is the only global convention specializing in the conservation of migratory species, their habitats and migration routes and co-operates with a number of other international organizations, NGOs and partners in the media as well as in the corporate sector. India has been a party to CMS since 1983.

Rotterdam Convention :

• It is an international treaty that facilitates informed decision-making by countries with regard to international trade in hazardous chemicals and pesticides.
• It was adopted in 1998 and enforced in 2004
•  It establishes a list of covered chemicals and requires parties seeking to export a chemical on that list to fi rst establish that the intended importing country has consented to the import.
• It also requires that a party seeking to export a chemical that is not listed under the Convention but that is subject to a ban or severe restriction in its own territory must provide notice to the importing country of the proposed export. India ratified it in 2005.

Stockholm Convention :

• The Stockholm Convention is a global treaty to protect human health and the environment from persistent organic pollutants (POPs) POPs are chemicals that remain intact in the environment for long periods, become widely distributed geographically, accumulate in the fatty tissue of living organisms and are toxic to humans and wildlife.
• It was adopted in 2001 in Geneva, and enforced in 2004.
• India signed the convention in 2002 and ratified it in 2006.

Tehran Convention :

• The Framework Convention for the Protection of the Marine Environment of the Caspian Sea -i.e. the Tehran Convention - came into being with the understanding of the need to protect and preserve the Caspian Sea’s natural resources for future generations.
• Having entered into force in 2006, the Tehran Convention is the fi rst regional legally binding instrument signed by all fi ve Caspian littoral states (Azerbaijan, Iran, Kazakhstan, Russia and Turkmenistan )