---
title: "International Environmental Conventions Guide"
description: "Master the major multilateral environmental agreements, the Rio trio, ozone regime and chemicals conventions, with protocols, India's status and UPSC testing."
url: "https://modeldiplomat.com/learn/lessons/upsc-environment-ecology-international-environmental-conventions"
---

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International environmental conventions

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# International environmental conventions

Master the major multilateral environmental agreements—Rio trio, ozone regime, chemicals and wildlife conventions—their protocols, India's status, and UPSC's testing pattern.

## The 1992 Rio Earth Summit and the Three Conventions

The United Nations Conference on Environment and Development (UNCED), held at Rio de Janeiro from 3–14 June 1992, is the structural pivot of modern global environmental governance. It produced the **Rio Declaration on Environment and Development** (27 principles, including Principle 15's precautionary approach and Principle 16's polluter-pays), **Agenda 21**, the **Forest Principles**, and opened for signature the three 'Rio Conventions':

- **United Nations Framework Convention on Climate Change (UNFCCC)** — entered into force 21 March 1994. Its Article 3.1 enshrines **Common But Differentiated Responsibilities and Respective Capabilities (CBDR-RC)**.
- **Convention on Biological Diversity (CBD)** — entered into force 29 December 1993. Three objectives: conservation, sustainable use, and fair and equitable sharing of benefits from genetic resources.
- **United Nations Convention to Combat Desertification (UNCCD)** — opened 1994, in force 26 December 1996, the only Rio convention with a legally binding link to a target on land (Sustainable Development Goal 15.3, Land Degradation Neutrality).

India ratified all three. The CBD's enabling domestic legislation is the **Biological Diversity Act, 2002**, which created the National Biodiversity Authority (NBA) at Chennai.

## Protocols Under the CBD and UNFCCC

A recurring UPSC trap is the parent-convention-to-protocol mapping. Under the **CBD** sit two protocols:

- **Cartagena Protocol on Biosafety (2000, in force 2003)** — governs transboundary movement of living modified organisms (LMOs); operationalises the precautionary principle via Advance Informed Agreement.
- **Nagoya Protocol (2010, in force 12 October 2014)** — on Access and Benefit Sharing (ABS) of genetic resources. India hosted COP-11 at Hyderabad in 2012, where the **Hyderabad Pledge** of USD 50 million was announced.

The successor to the Aichi Biodiversity Targets (2010, Nagoya) is the **Kunming-Montreal Global Biodiversity Framework (GBF)**, adopted at CBD COP-15 in December 2022, whose flagship **'30x30' target** commits parties to protect 30% of land and sea by 2030.

Under the **UNFCCC** sit the **Kyoto Protocol (1997, in force 2005)**—with its three flexibility mechanisms: Clean Development Mechanism, Joint Implementation, and Emissions Trading—and the **Paris Agreement (2015, in force 4 November 2016)**, which replaced top-down targets with Nationally Determined Contributions (NDCs) and a goal of limiting warming to well below 2°C, pursuing 1.5°C. India submitted its updated NDC in August 2022, targeting 50% non-fossil installed power capacity and emissions intensity reduction of 45% (over 2005 levels) by 2030, and net-zero by 2070.

## The Ozone Regime: A Model of Success

The **Vienna Convention for the Protection of the Ozone Layer (1985)** is a framework convention; its operational instrument is the **Montreal Protocol on Substances that Deplete the Ozone Layer (1987, in force 1989)**, the first UN treaty to achieve universal ratification. The **Kigali Amendment (2016, in force 2019)** added hydrofluorocarbons (HFCs)—potent greenhouse gases, not ozone-depleting substances—to the phase-down schedule, illustrating climate-ozone linkage. India ratified Kigali in 2021.

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