Major International Environmental Conventions
Environmental conventions for UPSC: Stockholm and Rio, Ramsar, CITES, CMS, Montreal and Kigali, Basel, Rotterdam, Stockholm POPs, Minamata, CBD protocols, UNCCD and BBNJ.
SyllabusGS III · General issues on environmental ecology, biodiversity and climate change (Prelims); conservation (GS III); important international institutions and agreements (GS II)
Prerequisites: International Environmental Conventions — overview · Biodiversity and Conservation
The Hook: A Treaty for the High Seas
In June 2023, after nearly two decades of talks, the United Nations adopted the Agreement on Marine Biological Diversity of Areas beyond National Jurisdiction (BBNJ) under the UN Convention on the Law of the Sea. The high seas — waters beyond any country’s exclusive economic zone — cover most of the ocean but had no comprehensive framework for protecting their biodiversity. The agreement covers four elements: marine genetic resources and benefit sharing, area-based management tools including marine protected areas, environmental impact assessments, and capacity building and technology transfer.
The question it raises: how does the world make environmental rules when no single country is in charge — and how do you keep dozens of such treaties straight for the exam?
The Core Concept
Multilateral environmental agreements (MEAs) are treaties between states. A convention usually sets out broad principles and institutions; a protocol adds specific, often binding, obligations under it; an amendment changes the text or scope. The Conference of the Parties (COP) is the governing body of most conventions.
Milestone conferences
| Event | Year | Outcome |
|---|---|---|
| UN Conference on the Human Environment, Stockholm | 1972 | First global environment conference; led to the UN Environment Programme (UNEP), headquartered in Nairobi; 5 June became World Environment Day |
| Brundtland Commission report, Our Common Future | 1987 | Defined sustainable development as development that meets the needs of the present without compromising the ability of future generations to meet their own needs |
| UN Conference on Environment and Development (Earth Summit), Rio de Janeiro | 1992 | Rio Declaration; Agenda 21; Forest Principles; UNFCCC and CBD opened for signature; negotiations launched for the UNCCD |
| Rio+20 | 2012 | The Future We Want; launched the process that led to the Sustainable Development Goals |
The Global Environment Facility (GEF), set up in 1991, serves as a financial mechanism for several conventions, including the CBD, UNFCCC, UNCCD, the Stockholm Convention and the Minamata Convention.
The master table
| Convention | Adopted (place) | Subject | Remember |
|---|---|---|---|
| Ramsar Convention | 1971, Ramsar (Iran) | Wetlands of international importance | Not a UN convention; secretariat hosted by IUCN at Gland; Montreux Record of threatened sites; World Wetlands Day 2 February |
| World Heritage Convention | 1972, Paris (UNESCO) | Cultural and natural heritage | Natural, cultural and mixed sites |
| CITES | 1973, Washington, D.C. | International trade in endangered wild fauna and flora | Three Appendices; secretariat in Geneva (administered by UNEP) |
| Convention on Migratory Species (CMS, Bonn Convention) | 1979, Bonn | Migratory species of wild animals | Appendix I (endangered) and II (need cooperation); India hosted COP13 at Gandhinagar (February 2020) |
| Vienna Convention | 1985, Vienna | Protection of the ozone layer | Framework for the Montreal Protocol |
| Montreal Protocol | 1987, Montreal | Phase-out of ozone-depleting substances | First UN treaty with universal ratification; Kigali Amendment (2016) phases down HFCs |
| Basel Convention | 1989, Basel | Transboundary movement of hazardous wastes and their disposal | Plastic waste amendments adopted 2019 |
| UNFCCC | 1992 (Rio) | Climate change | Kyoto Protocol 1997; Paris Agreement 2015 |
| Convention on Biological Diversity (CBD) | 1992 (Rio) | Conservation, sustainable use, benefit sharing | Cartagena Protocol 2000; Nagoya Protocol 2010; secretariat in Montreal |
| UN Convention to Combat Desertification (UNCCD) | 1994, Paris | Desertification, land degradation and drought | India hosted COP14 in New Delhi (2019) |
| Rotterdam Convention | 1998, Rotterdam | Prior Informed Consent (PIC) for trade in certain hazardous chemicals and pesticides | Information exchange, not a ban |
| Stockholm Convention | 2001, Stockholm | Persistent organic pollutants (POPs) | Began with the “dirty dozen”, including DDT (allowed for disease-vector control) |
| Minamata Convention | 2013, Kumamoto (Japan) | Mercury | Named after Minamata disease; in force 2017 |
| BBNJ Agreement | 2023, New York | Marine biodiversity of the high seas | Under UNCLOS (1982) |
The ozone regime in detail
- The Montreal Protocol controls chlorofluorocarbons (CFCs), halons, carbon tetrachloride, methyl chloroform, methyl bromide and, as transitional substitutes, hydrochlorofluorocarbons (HCFCs).
- Hydrofluorocarbons (HFCs) replaced many of these. They do not deplete ozone but are potent greenhouse gases.
- The Kigali Amendment (2016) brought HFCs under the Protocol for a phase-down. India is in the group of developing countries that will freeze HFC consumption in 2028 (baseline 2024–2026) and reduce it by 85% by 2047.
- World Ozone Day is 16 September, the date of the Protocol’s signing in 1987.
CITES Appendices
| Appendix | Covers | Trade |
|---|---|---|
| I | Species threatened with extinction | Commercial trade generally prohibited; permits needed for exceptional trade |
| II | Species not necessarily threatened now, but which could become so without trade control | Trade allowed with export permits |
| III | Species protected in at least one country that has asked others for help in controlling trade | Trade regulated with permits or certificates |
CITES is legally binding on its parties, but it does not replace national laws — each party must implement it through domestic legislation. India did so through the Wildlife (Protection) Amendment Act, 2022.
The CBD and its protocols
The CBD (in force 1993) has three objectives: conservation of biodiversity, sustainable use of its components, and fair and equitable sharing of benefits from genetic resources.
| Instrument | Year | Subject |
|---|---|---|
| Cartagena Protocol on Biosafety | 2000 (in force 2003) | Safe transfer, handling and use of living modified organisms (LMOs) from biotechnology |
| Nagoya Protocol | 2010 (in force 2014) | Access to genetic resources and benefit sharing (ABS) |
| Aichi Biodiversity Targets | 2010 | Twenty targets for 2011–2020 — none fully met at the global level |
| Kunming-Montreal Global Biodiversity Framework | 2022 | Four goals, 23 targets; “30 by 30” |
India hosted CBD COP11 in Hyderabad (2012).
Ramsar and India
- India’s first Ramsar sites, designated in 1981, were Chilika Lake (Odisha) and Keoladeo National Park (Rajasthan).
- Montreux Record sites from India: Keoladeo National Park and Loktak Lake (Manipur). Chilika was placed on the record in 1993 and removed in 2002 after restoration.
- India’s largest Ramsar site is the Sundarban Wetland (West Bengal), designated in 2019.
graph TD
A[Environmental agreements] --> B[Rio conventions]
A --> C[Nature and species]
A --> D[Chemicals and waste]
A --> E[Ozone]
B --> B1[UNFCCC 1992]
B --> B2[CBD 1992]
B --> B3[UNCCD 1994]
C --> C1[Ramsar 1971]
C --> C2[CITES 1973]
C --> C3[CMS 1979]
D --> D1[Basel 1989]
D --> D2[Rotterdam 1998]
D --> D3[Stockholm 2001]
D --> D4[Minamata 2013]
E --> E1[Vienna 1985]
E --> E2[Montreal 1987 and Kigali 2016]India’s own initiatives
- International Solar Alliance (ISA) — launched by India and France at COP21 in Paris (2015); headquartered in Gurugram; a treaty-based intergovernmental organisation.
- Coalition for Disaster Resilient Infrastructure (CDRI) — launched by India in 2019.
- LiFE (Lifestyle for Environment) — mass movement for sustainable consumption, introduced at COP26 (2021).
Memory Anchors
The chemicals cluster in chronological order — “Big Rats Steal Mercury”: Basel 1989 (waste) → Rotterdam 1998 (PIC) → Stockholm 2001 (POPs) → Minamata 2013 (mercury).
CBD protocols — “C for Cartagena, C for Crops”: Cartagena deals with genetically modified organisms (LMOs). “N for Nagoya, N for ‘Need to share’” — access and benefit sharing.
City clues
| Clue | Convention |
|---|---|
| An Iranian town | Ramsar |
| A German city | CMS (Bonn) |
| A Swiss city | Basel |
| A Dutch city | Rotterdam |
| A Swedish capital | Stockholm (1972 conference and 2001 POPs) |
| A Japanese bay | Minamata |
| A Rwandan capital | Kigali |
One-line Mains hook: Environmental problems respect no borders; MEAs are how sovereign states pool responsibility — on the principle of common but differentiated responsibilities.
For Prelims
- Ramsar (1971) is not a UN convention; its secretariat is hosted by IUCN in Gland, Switzerland.
- CITES regulates trade, not habitat; three Appendices; secretariat Geneva.
- Montreal Protocol — first UN treaty to be universally ratified; Kigali (2016) phases down HFCs, which do not deplete ozone.
- Cartagena = living modified organisms; Nagoya = access and benefit sharing.
- Rotterdam = prior informed consent; Stockholm 2001 = POPs; Basel = hazardous waste; Minamata = mercury.
- UNEP headquarters: Nairobi. CBD secretariat: Montreal. UNFCCC secretariat: Bonn.
- India hosted: CBD COP11 (Hyderabad, 2012), UNCCD COP14 (New Delhi, 2019), CMS COP13 (Gandhinagar, 2020).
- India’s Montreux Record sites: Keoladeo and Loktak.
For Mains
- Dimensions: sovereignty versus global commons; equity (CBDR-RC; finance and technology transfer); effectiveness (compliance mechanisms, monitoring); trade–environment linkages (CITES, Basel); science–policy interface.
- Keywords: global commons, common heritage of mankind, prior informed consent, access and benefit sharing, biopiracy, compliance mechanism, financial mechanism, synergy among conventions.
- Value-addition: the Montreal Protocol as the most successful MEA — the ozone layer is recovering; the Kigali Amendment as a climate co-benefit; the BBNJ Agreement (2023) closing a governance gap on the high seas; India’s leadership through the ISA and CDRI.
Common Traps
In the News
- June 2023 — BBNJ Agreement adopted at the United Nations.
- December 2022 — Kunming-Montreal Global Biodiversity Framework adopted at CBD COP15.
- See current affairs for new Ramsar designations and COP outcomes.
Practice
Prelims
Consider the following pairs:
| Convention | Subject |
|---|---|
| 1. Basel Convention | Transboundary movement of hazardous wastes |
| 2. Rotterdam Convention | Prior informed consent for certain hazardous chemicals and pesticides |
| 3. Stockholm Convention (2001) | Persistent organic pollutants |
| 4. Minamata Convention | Mercury |
How many of the pairs given above are correctly matched?
Solution
All four pairs are correct. The trap is assuming one must be wrong — UPSC’s “how many” format often has all pairs correct. Remember the chronology: Basel 1989, Rotterdam 1998, Stockholm 2001, Minamata 2013.
Answer: D
With reference to the Ramsar Convention, consider the following statements:
- It was signed in 1971 in the Iranian town of Ramsar.
- The Montreux Record lists wetland sites where changes in ecological character have occurred, are occurring or are likely to occur.
- It is one of the conventions administered by the United Nations Environment Programme.
Which of the statements given above is/are correct?
Solution
Statements 1 and 2 are correct. Statement 3 is incorrect — the Ramsar Convention is not part of the UN system of MEAs; its secretariat is hosted by IUCN in Gland, Switzerland. CITES, by contrast, has a UNEP-administered secretariat.
Answer: A
The Kigali Amendment to the Montreal Protocol provides for the phase-down of which of the following?
Solution
The Kigali Amendment (2016) added hydrofluorocarbons (HFCs) to the Montreal Protocol. HFCs do not deplete ozone but are powerful greenhouse gases. CFCs, HCFCs and methyl bromide were already controlled as ozone-depleting substances under the Protocol and its earlier amendments and adjustments.
Answer: C
Mains
The Montreal Protocol is often called the most successful international environmental agreement. Examine the reasons for its success and the lessons it offers for climate and biodiversity negotiations.
Solution
Introduction: The Montreal Protocol (1987) on substances that deplete the ozone layer became the first UN treaty to achieve universal ratification. Ozone-depleting substances have been sharply reduced, and the ozone layer is on a path to recovery.
Body:
- Reasons for success:
- Clear science and a visible threat (the Antarctic ozone hole) that built consensus.
- A limited set of substances and industries; substitutes were available.
- Differentiated timelines for developing countries, supported by the Multilateral Fund — an early application of common but differentiated responsibilities.
- Trade restrictions with non-parties, which encouraged universal participation.
- Flexible adjustments and amendments as science evolved — the Kigali Amendment (2016) added HFCs.
- Lessons for climate and biodiversity:
- Dedicated, predictable finance for developing countries.
- Sector-specific, measurable targets.
- Strong science–policy links and periodic review.
- Limits: climate change involves the whole economy and energy system, and biodiversity loss has diffuse causes, so direct transfer of the model is harder.
Conclusion: Montreal shows that ambitious environmental cooperation is possible when science is clear, finance is assured and obligations are fair; these ingredients must be scaled up for climate and biodiversity.
Quick Revision
| Point | One-liner |
|---|---|
| Stockholm Conference | 1972; UNEP (Nairobi) |
| Ramsar | 1971, Iran; IUCN hosts secretariat; Montreux Record |
| CITES | 1973, Washington; trade; three Appendices |
| CMS | 1979, Bonn; India hosted COP13 (2020) |
| Montreal | 1987; universal ratification; Kigali 2016 (HFCs) |
| Basel / Rotterdam / Stockholm / Minamata | 1989 waste / 1998 PIC / 2001 POPs / 2013 mercury |
| CBD | 1992; Cartagena (LMOs), Nagoya (ABS) |
| UNCCD | 1994; India hosted COP14 (2019) |
| BBNJ | 2023; high seas under UNCLOS |
Key Takeaways
- Learn conventions in clusters — Rio, nature, ozone, chemicals, oceans — with year, place and subject.
- Protocols belong to parent conventions: Cartagena and Nagoya to the CBD, Kyoto and Paris to the UNFCCC, Kigali to Montreal.
- The Montreal Protocol is the model of success; the BBNJ Agreement is the newest frontier.
Related Topics
- International Environmental Conventions — quick revision
- International Environmental Conventions — practice questions
- Climate Change
- Biodiversity and Conservation
- International Institutions