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Abidjan Convention 1981: West Africa marine environment

The Convention for Cooperation in the Protection, Management and Development of the Marine and Coastal Environment of the Atlantic Coast of the West, Central and Southern Africa Region, universally called the Abidjan Convention, was adopted at Abidjan, Côte d’‘Ivoire on 23 March 1981 and entered into force on 5 August 1984. It is the legally binding regional environmental framework for the WACAF region (West, Central and Southern Africa), an ocean envelope that wraps the entire Atlantic margin of the African continent from the Saharan-Mauritanian shelf in the north to the Cape of Good Hope in the south, a coastline of approximately 14,000 km spanning 22 Contracting Parties: Angola, Benin, Cameroon, Cape Verde, the Republic of the Congo, the Democratic Republic of the Congo, Côte d’‘Ivoire, Equatorial Guinea, Gabon, The Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mauritania, Namibia, Nigeria, São Tomé and Príncipe, Senegal, Sierra Leone, South Africa and Togo. The Convention is administered by the Abidjan Convention Secretariat hosted by the United Nations Environment Programme (UNEP) at its Abidjan office in Côte d’‘Ivoire, the only UNEP regional-seas secretariat located in Sub-Saharan Africa. The substantive obligations of the regime are layered onto the parent Convention through one in-force Protocol and two further Protocols at various stages of adoption: the Emergency Pollution Cooperation Protocol (Abidjan, 23 March 1981, in force 5 August 1984), the Calabar Mangrove Protocol on Sustainable Mangrove Management (Calabar, Nigeria, 2 June 2017, not yet in force) and the Pointe-Noire ICZM Protocol on Integrated Coastal Zone Management (Pointe-Noire, Republic of the Congo, 2012, draft text). The Convention sits alongside but does not duplicate the IMO instruments: it complements the MARPOL Convention, the MARPOL Annex I oil pollution prevention regime and the Reg 15 oil discharge criteria, the Ballast Water Management Convention and the global PSSA framework, and provides the regional umbrella for cooperation under IMO 2020 sulphur cap implementation along the Atlantic African coast. The Convention is the Atlantic-African counterpart of the HELCOM Convention 1992 for the Baltic, the Bucharest Convention 1992 for the Black Sea, the OSPAR Convention 1992 for the North-East Atlantic and the Barcelona Convention 1976/1995 for the Mediterranean. Notably, despite covering some of the world’’s most ecologically rich and biogeochemically active margins (the Canary Current upwelling off Mauritania-Senegal, the Benguela Current upwelling off Namibia-Angola, the Niger Delta, the Congo River basin outflow), the WACAF region has no MARPOL Special Area designations and no IMO PSSAs as of 2026, the most striking regulatory gap on any major regional sea.

Contents

Background: UNEP Regional Seas Programme + the Atlantic African region

The UNEP Regional Seas Programme (RSP) was launched in 1974 as the operational vehicle for delivering UNCLOS Article 197 obligations on regional cooperation for the protection of the marine environment, with the Mediterranean as its first regional case. By the late 1970s the Programme had identified the Atlantic margin of Africa as a priority region: a 14,000-kilometre stretch of coast running from the Cap Blanc / Nouadhibou boundary between Western Sahara and Mauritania down to the Cape of Good Hope at the southern tip of South Africa, encompassing some of the most productive marine ecosystems on the planet, the densest concentrations of human poverty along any major coast, and a shipping corridor of growing strategic importance for the South Atlantic crude flows (Nigerian, Angolan and Equatorial Guinean exports), the Cape Route for South Asia and Far East trade rounding South Africa, and the inshore feeder fleets serving the West African fisheries.

The Atlantic-African margin presented a distinctive set of pollution and ecosystem stressors. First, two of the world’s four eastern-boundary upwelling systems sit on this coast: the Canary Current system spinning off the Saharan-Mauritanian shelf and producing the high-productivity Mauritania-Senegal-Cape Verde waters that anchor the regional sardinella, octopus and demersal fisheries, and the Benguela Current system spinning off the Namibian shelf and producing the Lüderitz-Walvis Bay-Cunene upwelling cell that anchors the southern African anchovy, hake and pilchard fisheries. Second, the Niger Delta and the broader Bight of Bonny had emerged by the 1970s as the principal hydrocarbon production basin on the Atlantic margin, with the Bonny, Forcados and Brass terminals routinely flaring associated gas and discharging produced water on a scale unmatched anywhere else in the developing world. Third, the basin lacked any institutional architecture: the colonial-era marine-science institutes had largely collapsed at independence, the regional fisheries body CECAF (Fishery Committee for the Eastern Central Atlantic) had only an advisory mandate, and the Atlantic margin south of Senegal had effectively no functioning regional environmental cooperation.

UNEP responded by initiating an Action Plan for the West and Central African region in 1979 through a series of preparatory meetings convened in Abidjan, Lagos and Libreville. The negotiation phase produced two parallel documents: an Action Plan for the Protection and Development of the Marine and Coastal Environment of the West and Central African Region as the operational programme, and a binding framework Convention as the legal anchor. The dual structure mirrored the Mediterranean architecture (the 1975 Mediterranean Action Plan plus the 1976 Barcelona Convention) and would later be repeated in the Caribbean (the 1981 Caribbean Action Plan plus the 1983 Cartagena Convention) and in the East African region (the 1985 Nairobi Convention).

1981 Abidjan signing + 1984 entry into force

The Conference of Plenipotentiaries of the Coastal States of the West and Central African Region on the Protection and Development of the Marine Environment and Coastal Areas convened in Abidjan from 17 to 23 March 1981. The Conference was hosted by the Government of Côte d’Ivoire under President Félix Houphouët-Boigny, who used the occasion to emphasize Côte d’Ivoire’s ambition as a regional environmental leader. The Conference adopted three instruments on the closing day, 23 March 1981: the Action Plan, the Convention and a single Protocol on emergency pollution cooperation.

The Convention required ratification by six states to enter into force under Article 32. Ratifications were deposited at a deliberate pace: Côte d’Ivoire (1982), Senegal (1982), Nigeria (1982), Cameroon (1983), Gabon (1983), and the sixth instrument from Guinea in mid-1984. The Convention entered into force on 5 August 1984, three years and four months after signature, a comparatively rapid trajectory for a UNEP regional-seas instrument and a reflection of the political momentum generated by the Houphouët-Boigny opening. The Emergency Pollution Cooperation Protocol entered into force on the same day, having been ratified by the same six states in parallel.

The 1984 entry-into-force coincided with a turbulent decade for the region. The 1980s African debt crisis, the 1983-1985 Sahel drought, the Liberian civil war (1989-1997), the Sierra Leone civil war (1991-2002) and the protracted Angolan civil war (1975-2002) drained both political attention and financial resources from environmental cooperation. The Convention machinery existed on paper from 1984 onwards but its operational delivery was thin: the first Conference of the Parties (COP) met only in 1984 and subsequent COPs were held irregularly through the 1990s. The pattern of episodic high-level commitment punctuated by long quiet intervals would persist into the 2000s.

The 22 contracting parties (Mauritania to South Africa)

As of 2026 the Abidjan Convention has 22 Contracting Parties, listed here from north to south along the Atlantic coast: Mauritania, Senegal, The Gambia, Cape Verde (offshore archipelago), Guinea-Bissau, Guinea, Sierra Leone, Liberia, Côte d’Ivoire, Ghana, Togo, Benin, Nigeria, Cameroon, Equatorial Guinea, São Tomé and Príncipe (offshore archipelago), Gabon, the Republic of the Congo, the Democratic Republic of the Congo, Angola, Namibia and South Africa. The 22 represent the full set of independent coastal states and offshore archipelagos along the Atlantic margin of Africa from the Mauritania-Western Sahara boundary in the north to the Cape of Good Hope in the south.

The Convention text, when first signed in 1981, contemplated a wider list of potential parties (sometimes cited at 25 because the original Article 1 lists 25 candidate states, including some that were not yet independent at signature, some that were involved in territorial disputes such as Western Sahara, and some that have not subsequently ratified). The operational figure as of 2026 is the 22 ratified parties above.

The Parties divide naturally into three sub-regional blocks corresponding to the West African, Central African and Southern African coasts:

  • West African block (Mauritania to Nigeria): Mauritania, Senegal, The Gambia, Cape Verde, Guinea-Bissau, Guinea, Sierra Leone, Liberia, Côte d’Ivoire, Ghana, Togo, Benin, Nigeria.
  • Central African block (Cameroon to DRC): Cameroon, Equatorial Guinea, São Tomé and Príncipe, Gabon, Republic of the Congo, Democratic Republic of the Congo.
  • Southern African block (Angola to South Africa): Angola, Namibia, South Africa.

The 22 Parties include two offshore archipelagic states (Cape Verde and São Tomé and Príncipe), two extremely small coastal states (The Gambia and Equatorial Guinea by area), one continental hegemon (Nigeria with the largest population in Africa), and two industrially mature parties (Namibia and South Africa) that operate environmental administration on a fundamentally different resource base from the rest. The political heterogeneity of the Parties is a recurring constraint on the regional work programme: a sewage-discharge or port-reception standard suitable for South African ports is not realistic for The Gambia or Guinea-Bissau on a comparable timetable.

One significant geographic note: the Convention does not apply to the Indian Ocean coast of South Africa east of Cape Agulhas. That coast falls under the Nairobi Convention 1985 for the Eastern African region. The boundary between the two Conventions runs through the Cape of Good Hope, with the Abidjan Convention area ending at the Atlantic outer limit of South African territorial waters. The Convention also does not extend to the Western Sahara coast north of the Mauritanian boundary, whose regulatory status remains contested.

Geographical scope: ~14,000 km Atlantic margin coast

The Convention area is defined in Article 1 as the marine environment, coastal zones and related inland waters of the Atlantic Ocean from the boundary between Western Sahara and Mauritania in the north to the southern boundary of the territorial sea of South Africa, with a seaward extent corresponding to the outer limit of the territorial sea of each Party at signature, later extended through practice and by COP decision to encompass the Exclusive Economic Zones under UNCLOS as ratified by each Party.

The Atlantic-African coastline runs for approximately:

Lcoastline14,000 km (MauritaniaSouth Africa) L_{\text{coastline}} \approx 14{,}000 \text{ km (Mauritania} \rightarrow \text{South Africa)}

The coastline is geomorphologically heterogeneous along its length:

  • The Saharan-Mauritanian shelf (Mauritania, Senegal, The Gambia) is a relatively narrow, sandy, surf-dominated coast with the Banc d’Arguin as the largest single shallow-water bank in West Africa and a UNESCO World Heritage Site.
  • The Bissagos-Bijagós archipelago (Guinea-Bissau) and the Sherbro Estuary (Sierra Leone) form a complex of mangrove-fringed islands and tidal channels on the eroding margin of the Saharan-Sahelian sediment fan.
  • The Liberian-Ivorian coast is a microtidal sandy beach-and-lagoon system, with the Ébrié and Aby lagoons (Côte d’Ivoire), the Keta lagoon (Ghana) and the Mono lagoon (Togo-Benin) as the principal back-barrier features.
  • The Niger Delta (Nigeria) is a 70,000 km² wave-dominated, mangrove-fringed delta, the largest in Africa and one of the largest deltas globally, the dominant hydrocarbon production basin on the continent.
  • The Bight of Bonny / Bight of Biafra (Cameroon to Gabon) supports the Cross River, Ntem-Ogowe and Komo estuaries and the Mount Cameroon volcanic massif sitting near the coast.
  • The Congo River mouth and the Cabinda enclave (Republic of the Congo, DRC, Angola) are dominated by the world’s second-largest river discharge and a deep submarine canyon extending the Congo plume into the abyssal South Atlantic.
  • The Skeleton Coast and the Walvis Bay-Lüderitz cell (Namibia) are hyper-arid sandy desert coast meeting the Benguela upwelling, with massive seal colonies, gannet stacks and pelagic fish stocks.
  • The Cape coast (South Africa) is rocky, indented, with the Cape of Good Hope marking the conventional boundary between the Atlantic and the Indian Ocean.

The aggregate Convention area is therefore not a closed sea like the Mediterranean, the Black Sea, the Caribbean or the Persian Gulf but an open Atlantic margin with no enclosed sub-basin character. This open-margin geometry has profound regulatory consequences: the basin is not a candidate for the closed-sea pollution-budget approaches that work in the Mediterranean or the Baltic, and the case for MARPOL Special Areas based on dilution arguments is correspondingly weaker, contributing to the absence of any such designation along this coast.

Secretariat: UN Environment in Abidjan, Côte d’Ivoire

The Convention is administered by the Abidjan Convention Secretariat hosted by the United Nations Environment Programme at its Abidjan office in Côte d’Ivoire, under a Headquarters Agreement between Côte d’Ivoire and UNEP signed in parallel with the entry into force of the Convention in 1984 and renewed by the COP at intervals. The Secretariat is housed at the UNEP Regional Office for Africa premises in Cocody-Abidjan, with operational responsibility for the WACAF Sub-programme of the UNEP Regional Seas Programme.

The Secretariat is the only UNEP regional-seas secretariat located in Sub-Saharan Africa. (The Nairobi Convention covering East Africa is administered by the Nairobi Convention Secretariat at the UNEP headquarters in Nairobi, Kenya, and the Jeddah-based PERSGA covering the Red Sea and Gulf of Aden is administered separately.) The Abidjan placement was chosen at signature in 1981 in recognition of Côte d’Ivoire’s host role and remains in place despite the political turbulence of the 2002-2007 Ivorian civil war and the 2010-2011 post-election crisis, both of which interrupted Secretariat operations.

The Secretariat employs around 8 to 12 staff, drawn primarily from the WACAF region, supplemented by UNEP Programme officers seconded from Nairobi headquarters. The staff complement is materially smaller than the comparable secretariats of the Mediterranean (UNEP/MAP at Athens with around 60 staff), the Caribbean (UNEP/CEP at Kingston with around 25 staff) or the North-East Atlantic (OSPAR Commission at London with around 20 staff). The funding gap that produces this staffing gap is the single most-cited operational constraint on the Abidjan Convention regime.

The Secretariat services the biennial Conference of the Parties (COP), the Bureau of the COP, an emerging system of National Focal Points in each Party, and a slowly developing network of thematic Working Groups under the work programme. There are no permanent thematic Regional Activity Centres on the Mediterranean / Caribbean model, although the GEF-funded GCLME and BCLME programmes (see below) function in some respects as de facto regional activity centres for the Guinea Current and Benguela Current sub-regions respectively.

Convention structure + relationship to UNEP RSP

The Convention text follows the classical UNEP framework-and-protocols architecture pioneered at Barcelona in 1976. The parent Convention defines the geographic scope (Article 1), the general obligations to take all appropriate measures to prevent, reduce, combat and control pollution (Article 4), the principal pollution vectors covered (ships, dumping, sea-bed activities, land-based sources, atmospheric sources, Articles 5 to 9), the cooperation obligations on pollution emergencies and on environmental impact assessment (Articles 10 to 13), the Secretariat and institutional arrangements (Articles 16 to 18), the COP machinery (Article 17), the dispute settlement mechanism (Article 24) and the entry-into-force and amendment provisions (Articles 28 to 32).

The substantive obligations are deliberately delegated to thematic Protocols, each of which requires separate ratification and enters into force on its own timetable. This architectural choice means that the parent Convention is in itself a relatively thin instrument, with most of the legal weight residing in the Protocols. As of 2026 the Abidjan Convention has only one Protocol in force, which is materially fewer than the seven Protocols of the Barcelona Convention, the four Protocols of the Kuwait Convention or the three Protocols of the Cartagena Convention. This thin Protocol architecture is the second of the structural constraints (alongside the Secretariat funding gap) that limits the operational reach of the Abidjan regime.

The table below summarises the three Protocols negotiated under the Convention as of 2026.

ProtocolAdoptedEntry into forceStatus (2026)
Emergency Pollution Cooperation Protocol23 March 1981, Abidjan5 August 1984In force
Calabar Mangrove Protocol2 June 2017, Calabar (COP12)Not yet in force (requires 6 ratifications; 3 deposited as of mid-2026)Not yet in force
Pointe-Noire ICZM Protocol2012, Pointe-Noire (COP10)Not adopted by COPDraft text only

The Convention is administered as one of the 18 UNEP Regional Seas Programmes worldwide and is part of the Regional Seas Strategic Directions 2022-2025 adopted at the UNEP Global Meeting of the Regional Seas Conventions and Action Plans. The cooperation framework with sister Conventions includes joint monitoring methodologies, a shared marine litter strategic framework, joint COP events on cross-cutting topics and a common reporting template at the UN Ocean Conferences.

Original 1981 Emergency Pollution Cooperation Protocol

The Protocol Concerning Cooperation in Combating Pollution in Cases of Emergency, the Emergency Protocol, was adopted at Abidjan alongside the parent Convention on 23 March 1981 and entered into force together with the Convention on 5 August 1984. The Emergency Protocol is the only one of the Convention’s Protocols in force as of 2026.

The Protocol commits the Contracting Parties to:

  • Develop and maintain national contingency plans for marine-pollution response, with priority on oil-spill emergencies arising from tanker traffic, oil-terminal operations and offshore production.
  • Designate a competent national authority and an operational contact point for receiving and transmitting pollution-incident reports under the Protocol.
  • Render mutual assistance in the event of a pollution emergency that affects or is likely to affect another Party, on the request of the affected Party.
  • Exchange information on response capabilities, on technical and scientific developments, on bilateral and multilateral cooperation arrangements, and on national legislation and administrative practice.
  • Cooperate with competent international organisations, in particular the IMO under the OPRC framework adopted in 1990 (post-dating the Protocol), and the REMPEC-style regional centres that emerged in other regions.

The Emergency Protocol predates the global OPRC 1990 by nine years and was, at signature, one of the most advanced regional oil-spill response instruments in the world. In practice, however, the operational delivery of the Protocol has been weaker than either its text or its peer Protocols (Cartagena Oil Spills 1983, Barcelona Emergency 1976) would suggest. The Protocol does not designate a regional oil-spill response centre on the REMPEC model. There is no permanent equivalent of MEMAC (Persian Gulf), RAC-REMPEITC Caribe (Caribbean) or REMPEC (Mediterranean) for the Atlantic-African coast. Instead, response capability resides in national authorities: the Nigerian Oil Spill Detection and Response Agency (NOSDRA), the South African Maritime Safety Authority (SAMSA) under the Department of Forestry, Fisheries and the Environment, the Ghana Maritime Authority and similar national bodies, supplemented by Tier 2 commercial cooperation through Oil Spill Response Limited (OSRL) with regional pre-positioned equipment caches in Dakar (Senegal), Lagos (Nigeria) and Cape Town (South Africa).

A common error is to count the Convention as having more than one Protocol in force. Only the 1981 Emergency Protocol is in force as of 2026. The Calabar (2017) and Pointe-Noire (2012) Protocols have not yet met their respective entry-into-force thresholds.

Calabar Mangrove Protocol 2017 (not yet in force)

The Protocol Concerning Cooperation in the Sustainable Management of Mangroves in the Western, Central and Southern Africa Region, the Calabar Mangrove Protocol, was adopted at the Twelfth Conference of the Parties (COP12) of the Abidjan Convention held at Calabar, Cross River State, Nigeria from 31 May to 2 June 2017. The Protocol is the first regional binding instrument anywhere in the world specifically dedicated to mangrove ecosystem protection, and is the most ambitious substantive expansion of the Abidjan regime since 1981.

The Protocol commits ratifying Parties to:

  • Develop national mangrove inventories and management plans with sustainable-use criteria and clear no-take zones.
  • Apply integrated management approaches that link mangrove conservation to fisheries, coastal-zone planning and climate adaptation.
  • Protect mangroves of regional importance including the Niger Delta, Cross River and Bonny Estuary complex (Nigeria), the Sherbro and Sierra Leone River estuaries (Sierra Leone), the Geba and Cacheu estuaries (Guinea-Bissau), the Saloum Delta (Senegal), the Banc d’Arguin intertidal flats (Mauritania) and the Cuanza estuary (Angola).
  • Cooperate on cross-boundary mangrove systems straddling national maritime boundaries.
  • Integrate mangrove protection with REDD+ and blue carbon programming under the UNFCCC framework.

The Protocol requires ratification by six Parties to enter into force. As of mid-2026 only three Parties have deposited instruments of ratification, and the Protocol is not yet in force. The principal practical effect is that the Calabar text functions as soft-law guidance and as the conceptual framework for GEF-funded mangrove projects along the WACAF coast, including the Mangroves for the Future programme and the CoastFit climate-adaptation programme. The Calabar Protocol is also a reference document under the AU Blue Economy Strategy and the UNFCCC NDC processes for the WACAF coastal states.

Pointe-Noire ICZM Protocol 2012 (draft)

The Protocol on Integrated Coastal Zone Management (ICZM) in the Western, Central and Southern Africa Region, the Pointe-Noire ICZM Protocol, was developed in draft form at the Tenth Conference of the Parties (COP10) held in Pointe-Noire, Republic of the Congo in November 2012. The Protocol was modelled directly on the Madrid ICZM Protocol of the Barcelona Convention (signed at Madrid on 21 January 2008, in force 24 March 2011), the world’s first binding regional ICZM Protocol.

The Pointe-Noire text commits prospective Parties to:

  • Adopt national ICZM strategies integrating land-based and marine planning across a defined coastal zone.
  • Establish coastal-setback lines for new construction along the coast, with reference setbacks of 100 m from the high-water mark for low-vulnerability coast and up to 300 m for high-vulnerability coast (the Madrid Protocol baseline).
  • Apply environmental impact assessment to all major coastal infrastructure projects.
  • Cooperate on cross-boundary coastal planning including for shared estuaries and lagoon systems.
  • Address climate-adaptation pressures including sea-level rise, storm-surge return periods and coastal-erosion mitigation.

The Protocol has not been formally adopted by the COP and remains in draft form. The political constraints on adoption are real: the proposed coastal-setback regime, in particular, would imply substantial disruption to the existing patterns of beachfront tourism development in Senegal (Saly), Cape Verde (Sal and Boa Vista), Côte d’Ivoire (Assinie), Ghana (Ada Foah), Cameroon (Kribi), Gabon (Pointe-Denis) and South Africa (Western Cape coast), and to the heavily urbanised coast around Lagos, Cotonou, Lomé, Abidjan and Pointe-Noire itself. Adoption has been deferred at successive COPs, although the climate-adaptation pressure (see below) is steadily reshaping the political calculus.

Hydrography: Atlantic margin, Canary + Benguela upwellings

The Atlantic-African coast is dominated hydrographically by two of the world’s four major eastern-boundary upwelling systems, the Canary Current Large Marine Ecosystem (CCLME) in the north and the Benguela Current Large Marine Ecosystem (BCLME) in the south, with a transitional warm-water tropical regime between them coinciding with the Guinea Current Large Marine Ecosystem (GCLME).

The Canary Current is a south-westward eastern-boundary current flowing along the Saharan-Mauritanian-Senegalese coast at typical surface velocities of 0.1 to 0.3 m/s. Trade-wind-driven Ekman transport produces a quasi-permanent coastal upwelling that brings cold, nutrient-rich water from depths of around 100 to 200 m to the surface, generating one of the world’s most productive marine ecosystems with a primary productivity of around 300 to 400 g C / m² / year along the upwelling axis. The Canary Current upwelling underpins the sardinella, octopus, demersal fish and small pelagic fisheries of Mauritania, Senegal, The Gambia and the Cape Verde EEZs, with an aggregate landed value of around USD 1 to 1.5 billion per year.

The Benguela Current is a northward eastern-boundary current flowing along the Namibian-Angolan coast at typical surface velocities of 0.1 to 0.5 m/s. The upwelling cell is centred at the Lüderitz Cell (around 26°S) and extends from the Cunene River mouth in the north to Cape Columbine in the south. Primary productivity along the Benguela upwelling axis is the highest of any of the four eastern-boundary systems globally, around 350 to 600 g C / m² / year, supporting the Namibian and South African anchovy, hake, pilchard and horse-mackerel fisheries with an aggregate landed value of around USD 0.8 to 1.0 billion per year.

Between the two upwelling systems sits the Guinea Current, a warm, eastward-flowing equatorial current with a less pronounced upwelling structure, dominated instead by the seasonal monsoonal precipitation and the runoff of the Niger, Volta, Bandama and Sassandra river systems. Primary productivity in the Guinea Current is correspondingly lower, around 150 to 250 g C / m² / year, but the system supports the highest mangrove-and-estuary biodiversity on the continent and the artisanal canoe fisheries that are the principal source of animal protein for some 200 million coastal West Africans.

Major rivers: Senegal, Niger, Volta, Congo, Cunene, Orange

The Atlantic-African coast receives the discharge of six major river systems, three of which rank among the world’s twenty largest by discharge volume. The Congo River is the second-largest river in the world by discharge, the largest river in Africa and one of the most distinctive river systems on Earth, with the only major river plume that crosses the equator and projects into a deep submarine canyon.

QCongo41,800 m3/s (2nd largest world by discharge) Q_{\text{Congo}} \approx 41{,}800 \text{ m}^3/\text{s (2nd largest world by discharge)}

The principal Atlantic-African rivers are:

  • Senegal River: the boundary river between Senegal and Mauritania, with an annual discharge of around 770 m³/s, draining a mostly Sahelian basin. The Diama and Manantali dams have substantially modified the seasonal flow.
  • Niger River: the third-largest river in Africa, discharging into the Niger Delta in Nigeria with an annual discharge of around 5,600 m³/s. The Delta is the largest in Africa and is the dominant hydrocarbon production basin on the Atlantic margin.
  • Volta River: the principal river of Ghana, discharging through the Keta-Ada Foah mouth at around 1,200 m³/s following the impoundment of the Akosombo dam which created Lake Volta in 1965.
  • Sanaga River: the principal river of Cameroon, discharging through the Mouanko mouth at around 2,000 m³/s.
  • Ogooué River: the principal river of Gabon, discharging through the Port-Gentil mouth at around 4,700 m³/s.
  • Congo River: the dominant river of the WACAF region, discharging through the Banana mouth at around 41,800 m³/s and feeding the Congo Submarine Canyon that extends to the abyssal plain.
  • Cunene River: the boundary river between Angola and Namibia, with a heavily modified flow regime (the Calueque and Ruacaná dams) and an annual discharge of around 170 m³/s.
  • Orange River: the principal river of South Africa and Namibia, discharging through the Alexander Bay-Oranjemund mouth at around 365 m³/s, on the southern flank of the Benguela upwelling.

The aggregate Atlantic-African river discharge into the Convention area is approximately 60,000 m³/s, more than 90 percent of which is the Congo alone. The Congo plume is the dominant terrestrial signal in the South Atlantic margin biogeochemistry, carrying around 86 million tonnes per year of suspended sediment and about 40 million tonnes per year of dissolved organic and inorganic carbon to the Atlantic.

Guinea Current LME (GCLME) GEF project

The Guinea Current Large Marine Ecosystem (GCLME) is a UNEP-administered GEF project covering the WACAF coast from Guinea-Bissau to Angola, encompassing 16 countries: Angola, Benin, Cameroon, Côte d’Ivoire, Democratic Republic of the Congo, Equatorial Guinea, Gabon, Ghana, Guinea, Guinea-Bissau, Liberia, Nigeria, Republic of the Congo, São Tomé and Príncipe, Sierra Leone, Togo. The GCLME programme was funded under GEF-3 in 2004-2010 with around USD 21 million in core funding and around USD 60 million in co-financing, and a follow-on GEF-7 phase ran in 2019-2024 focusing on fisheries governance, marine litter, oil and gas pollution and climate-resilient coastal management.

The GCLME programme conducted the first detailed Transboundary Diagnostic Analysis (TDA) for the Guinea Current basin, identifying the principal stressors as: chronic oil pollution from the Niger Delta production complex, IUU fishing on the artisanal-industrial interface, mangrove loss in the Bight of Bonny, marine plastic loading from the Lagos-Cotonou-Lomé conurbation, and the climate-driven shift of the 0°C and 27°C isotherms affecting the seasonal upwelling structure. The TDA fed a Strategic Action Programme (SAP) that aligns with the Abidjan Convention work programme and that nominates the GCLME area as the priority sub-region for the Calabar Mangrove Protocol implementation.

The GCLME and BCLME programmes are GEF-funded LME programmes administered by UNEP in alignment with the Abidjan Convention. They are not subsidiary bodies of the Convention. This distinction matters for governance: a change in GEF priorities or funding cycles can suspend programme activities without triggering any obligation under the Convention text.

Benguela Current LME (BCLME) GEF project

The Benguela Current Large Marine Ecosystem (BCLME) programme is the southern counterpart of the GCLME, covering the Atlantic margin from the Cunene River to the Cape of Good Hope, encompassing three countries: Angola, Namibia and South Africa. The BCLME programme was funded under GEF-3 in 2002-2008 with around USD 16 million in core funding plus around USD 40 million in co-financing, and led directly to the negotiation of a separate binding regional instrument: the Benguela Current Convention (BCC), signed at Luanda on 18 March 2013 by Angola, Namibia and South Africa, with a permanent Secretariat at Swakopmund, Namibia.

The BCC is a free-standing regional Convention focused on the integrated ecosystem-based management of the Benguela system, and is structurally distinct from but operationally complementary to the Abidjan Convention. The BCC is not a Protocol of the Abidjan Convention; the two instruments are legally independent. The BCC operates on a per-capita budget per coast-mile that is materially larger than the Abidjan Convention budget, and its Secretariat in Swakopmund is widely cited as the most effective regional ocean-governance body in Sub-Saharan Africa. The BCC programme covers the Namibian hake, anchovy and pilchard stocks, the Angolan demersal complex and the South African west-coast rock lobster, hake and anchovy stocks, and is the most institutionalised fisheries cooperation arrangement on the Atlantic-African margin.

Oil + gas exploration challenges (Nigeria, Angola, Ghana, Senegal-Mauritania)

The Atlantic-African margin has emerged since the late 1990s as one of the world’s most active deep-water hydrocarbon basins, with major production from at least four sub-basins:

  • Niger Delta and offshore Nigeria: the historical anchor of African oil production, with around 1.4 to 1.6 million barrels per day of crude production from the Bonny, Forcados, Brass, Qua Iboe and offshore terminals. The Delta is the site of the most chronic oil-pollution loading in Africa, with the UNEP Ogoniland Assessment 2011 documenting widespread contamination and a USD 1 billion clean-up programme funded jointly by the Nigerian Government, Shell and the international oil companies.
  • Angolan deep-water sub-basin: production of around 1.1 to 1.3 million barrels per day from the Block 17, Block 31 and Block 14/14K assets in the Lower Congo and Kwanza Basins, with FPSOs in 1,500 to 2,800 m water depth. The principal operators are TotalEnergies, ExxonMobil, BP and Sonangol.
  • Ghanaian Tano Basin: the Jubilee field discovered in 2007 and on stream from 2010 with around 70,000 to 90,000 barrels per day, plus the TEN field and the Sankofa field for combined Ghanaian production of around 180,000 barrels per day.
  • Senegal-Mauritania emerging basins: the Sangomar field (Senegal, on stream 2024) and the Greater Tortue Ahmeyim LNG project (Senegal-Mauritania border, on stream 2024-2025) brought the two countries into the producing-country category for the first time.

The aggregate Atlantic-African crude production is approximately 3.5 to 4.0 million barrels per day, around 4 percent of global crude output and rising. The associated environmental loading, chronic produced-water discharge, occasional well blowouts and tanker spills, gas flaring (Nigeria flares around 7 to 8 billion cubic metres per year), and the subsea-pipeline failure rate, is the single largest direct anthropogenic pressure on the Convention area and the principal regulatory gap that the Emergency Protocol addresses only partially.

A Suezmax tanker loading Bonny Light crude at the Bonny Terminal in 2026 and heading to the US Gulf coast operates under the MARPOL Annex I oil-discharge regime including Reg 15 oil-discharge criteria, the IMO 2020 sulphur cap, the Ballast Water Management Convention D-2 standard and the Nigerian NOSDRA Tier 1 contingency plan. The Abidjan Convention’s direct relevance to that voyage is the Emergency Pollution Cooperation Protocol, applicable if a pollution incident in the WACAF region affects another Party. There is no MARPOL Special Area and no PSSA applicable on any leg within the Convention area, and no Convention-mandated reporting obligation analogous to Mediterranean MED-PEC reporting.

Marine plastic pollution + macroplastic loading

The Atlantic-African coast carries a marine plastic loading that is comparatively poorly characterised relative to better-monitored basins (the Mediterranean, the North Pacific Subtropical Gyre, the Caribbean) but that emerging assessments suggest is severe. The Lagos-Cotonou-Lomé-Accra conurbation alone is estimated to discharge between 150,000 and 300,000 tonnes per year of mismanaged plastic waste to the Atlantic, with the Niger and Volta rivers as the principal transport pathways. The Congo River plume carries an additional poorly-quantified load of mixed riverine and urban plastic into the South Atlantic, much of which is intercepted by the Benguela upwelling and washed back to the Namibian coast as macroplastic debris.

The Abidjan Convention COP14 at Pointe-Noire in 2024 adopted a WACAF Marine Plastic Pollution Strategy 2024-2030 as the principal substantive output, with five action lines parallel to the Caribbean and Mediterranean strategies: single-use plastic regulation, extended producer responsibility, port-reception facility upgrades for Annex V garbage, river-mouth interception programmes, and regional monitoring with a sub-regional pilot in the Niger Delta and the Bight of Bonny. The strategy is supported by GEF-8 contributions of around USD 10 million and parallel funding from the EU Environment for Africa programme and from Norway through the NORAD Marine Litter initiative.

IUU fishing: West Africa as global hotspot

Illegal, Unreported and Unregulated (IUU) fishing is the most-documented economic pathology of the Atlantic-African margin and the single largest source of cross-boundary environmental harm in the WACAF region. FAO assessments consistently rank West Africa as the world’s most severely affected sub-region for IUU fishing, with annual losses estimated at:

IUU fishing loss West AfricaUSD 2.3 bn/yr (FAO 2017 est.) \text{IUU fishing loss West Africa} \approx \text{USD 2.3 bn/yr (FAO 2017 est.)}

The drivers are well understood. The Mauritania-Senegal-Guinea-Bissau-Sierra Leone-Liberia EEZs sit on the most productive Canary Current upwelling, attracting industrial distant-water fleets from the EU (under access agreements), China, Russia, Japan, South Korea and several flag-of-convenience operators. National monitoring, control and surveillance (MCS) capability is underfunded: navies are small, patrol vessels are few, and Vessel Monitoring System (VMS) coverage is incomplete or evadable. The IUU fleet uses techniques that include flag-hopping through Benin or São Tomé and Príncipe registries, at-sea transhipment to refrigerated cargo vessels (reefers) outside the EEZ, and the trawling of inshore artisanal-zone waters with industrial gear.

The Abidjan Convention does not have an explicit fisheries-management mandate, which is held instead by the CECAF (FAO Fishery Committee for the Eastern Central Atlantic) and the regional fisheries management organisations including the ICCAT (Atlantic tunas) and the SEAFO (Southeast Atlantic). The Convention’s relevance to IUU fishing is indirect: through the Calabar Mangrove Protocol’s ecosystem-protection provisions, through the Pointe-Noire ICZM Protocol’s integrated planning, and through political alignment with the AU AIM 2050 strategy on maritime governance. The FISH-i Africa initiative and the PRCM (Programme Régional de Conservation de la zone côtière et Marine) are the principal sub-regional IUU-fishing cooperation mechanisms operating alongside the Convention.

Coastal erosion + sea-level rise (Lagos, Cotonou, Lomé, Abidjan)

The Atlantic-African coast is extraordinarily vulnerable to coastal erosion and sea-level rise. The Bight of Benin coast from Lagos through Cotonou and Lomé to Aflao at the Ghana-Togo border is one of the world’s most severely eroding coasts, with retreat rates locally exceeding 20 to 30 metres per year at certain hot-spots and decadal-scale shoreline retreat of around 5 to 10 metres per year along much of the Beninese and Togolese coast. The drivers include: net alongshore transport eastward along the Bight at around 0.5 to 1.5 million m³/year of sand, interrupted by harbour breakwaters at Lagos (Apapa-Tin Can), Cotonou, Lomé, Tema and Takoradi; the damming of the Volta at Akosombo (1965) and the Niger at Kainji (1968) which substantially reduced the riverine sediment supply to the coast; and the gradual regional subsidence of the Niger Delta from gas-and-oil extraction.

Sea-level rise on the Atlantic-African coast is broadly consistent with the global mean rate of around 3 to 4 mm/year as measured by satellite altimetry (since 1993), with locally higher rates in the Niger Delta where land subsidence adds to the eustatic rise. The combined effect on the Lagos urban agglomeration (around 24 million population by 2026 estimates), Cotonou (around 1.5 million), Lomé (around 2.3 million) and Abidjan (around 5.5 million) is a chronic loss of urban beachfront, frequent storm-tide flooding, salinisation of the back-barrier lagoons and a rising urban-resilience cost that is now central to AU AIM 2050 and to NDC climate-adaptation programming for the WACAF coastal states.

The Abidjan Convention engages the coastal-erosion problem principally through the draft Pointe-Noire ICZM Protocol and through the WACA (West Africa Coastal Areas Management) programme of the World Bank, a sub-regional adaptation programme covering the Lagos-Cotonou-Lomé-Abidjan-Saint-Louis stretch with a financing envelope of around USD 410 million in the first phase (2018-2024).

Absence of MARPOL Special Areas + PSSA (notable gap)

A defining feature of the Abidjan Convention area is the complete absence of any IMO MARPOL Special Area designation and any IMO Particularly Sensitive Sea Area (PSSA). The full list of MARPOL Special Areas, as maintained by the IMO, includes the Mediterranean, the Baltic, the Black Sea, the Red Sea, the Gulfs area (Persian Gulf), the North-West European Waters, the Gulf of Aden, the Antarctic, the Wider Caribbean (Annex V) and the North Sea (Annex V), plus the various Annex VI Emission Control Areas. No part of the Atlantic-African margin features on any Annex Special Area list. The full list of IMO PSSAs includes the Great Barrier Reef, the Sabana-Camagüey Archipelago, Malpelo Island, the Florida Keys, the Wadden Sea, the Paracas National Reserve, the Western European Waters PSSA, the Canary Islands (off Africa but designated by Spain), the Galápagos Archipelago, the Baltic Sea PSSA, the Papahānaumokuākea Marine National Monument, the Strait of Bonifacio, the Saba Bank, the Tubbataha Reefs, the Jomard Entrance and the Tuscan Archipelago. No PSSA lies on the Atlantic-African coast.

The absence is particularly striking given the ecological importance of the upwelling systems, the mangrove and reef systems of the Bight of Bonny, the Banc d’Arguin and the Bissagos archipelago, and the chronic shipping pressure of the Cape Route. The reasons for the gap are partly institutional (the Abidjan Convention’s thin Secretariat capacity to develop the technical files needed for an IMO submission), partly geometric (the open-Atlantic-margin geometry is less amenable to dilution-based Special Area arguments than the closed semi-enclosed seas), and partly political (the lower priority accorded to marine environment by most WACAF states relative to the food-security and shipping-development priorities). A 2018 UNEP Pre-Feasibility Study examined the case for a Bight of Bonny PSSA but did not progress to an IMO submission. The closure of this gap is a stated medium-term ambition under the Abidjan Convention 2022-2027 work programme but remains unrealised as of 2026.

African Union AIM 2050 strategy alignment

The African Union 2050 Africa’s Integrated Maritime Strategy (AIM 2050) was adopted by the AU at its Twenty-First Ordinary Session of the Assembly in Addis Ababa on 27 January 2014 and is the AU’s overarching framework for ocean and maritime governance across the entire African continent. The Abidjan Convention is explicitly recognised under AIM 2050 as the lead instrument for marine environmental cooperation along the Atlantic margin of the continent, with the Nairobi Convention as the corresponding lead for the Indian Ocean margin and the Jeddah-based PERSGA for the Red Sea margin.

The AIM 2050 framework establishes the Combined Exclusive Maritime Zone of Africa (CEMZA) as the unified ocean envelope of all African EEZs, and the AU Charter on Maritime Security and Safety and Development in Africa, the so-called Lomé Charter adopted at the Extraordinary AU Summit on Maritime Security in Lomé on 15 October 2016. The Lomé Charter elevates the political profile of the Atlantic-African maritime regime and creates obligations on AU Member States that overlap and reinforce the Abidjan Convention’s substantive obligations on cooperation, environmental impact assessment, emergency response and integrated coastal management.

The alignment is, in practice, partial. The Abidjan Convention has not yet been formally cross-referenced under any of the major AIM 2050 implementation programmes, and the Lomé Charter had a limited number of ratifications in the years after 2016. The political momentum for tighter alignment is building through the AU Blue Economy Strategy adopted in 2019 and through the recurring engagement of the AU on the Continental Free Trade Area (AfCFTA) and the maritime trade architecture that AfCFTA presupposes.

Comparison to OSPAR (parallel NE Atlantic)

The Abidjan Convention is the South Atlantic counterpart of the Convention for the Protection of the Marine Environment of the North-East Atlantic, the OSPAR Convention, signed at Paris on 22 September 1992 and in force from 25 March 1998. The two Conventions cover the eastern Atlantic margin in two contiguous halves: OSPAR covers the NE Atlantic from the Iberian-Moroccan boundary at Cape Spartel north to the Arctic and east to the European-Russian boundary, while Abidjan covers the NE-SE Atlantic from the Mauritania-Western Sahara boundary south to the Cape of Good Hope.

The contrast in operational depth is stark. OSPAR is administered by a permanent OSPAR Commission at Victoria House, London with around 20 staff and an annual budget of around EUR 4 million, has 15 Contracting Parties plus the EU, has produced five thematic Annexes and Strategies (Annex I land-based sources, Annex II dumping, Annex III offshore, Annex IV biodiversity, Annex V monitoring), the OSPAR Quality Status Reports at six-yearly intervals, the OSPAR List of Threatened and/or Declining Species and Habitats, the OSPAR Marine Protected Areas network covering around 6 percent of the OSPAR area, and is closely integrated with the EU Marine Strategy Framework Directive (2008/56/EC).

The Abidjan Convention has none of the equivalent products. There is no Quality Status Report on the OSPAR pattern, no thematic Annex on offshore oil-and-gas (despite the production volumes being comparable), no MPA network identification, no biodiversity list, no monitoring framework on the OSPAR pattern. The under-capacitation has at least three causes: the OSPAR area is bounded by middle-income and high-income states with mature environmental administrations, while the Abidjan area is dominated by low-income and lower-middle-income states with thin environmental administrations; OSPAR has the EU integrating funding stream and the MSFD legal driver, while Abidjan has neither; and OSPAR has retained continuity from its 1972 predecessors (Oslo and Paris Conventions) while Abidjan has had several long inactive intervals.

Comparison to Barcelona Convention (Mediterranean parallel)

The Barcelona Convention 1976/1995 is the most institutionally developed of the UNEP regional-seas Conventions and is the architectural model from which all the others derive. Barcelona has 22 Contracting Parties (the same number as Abidjan), an annual MAP Trust Fund of around EUR 5 million, a Secretariat at Athens with around 60 staff, seven Protocols in force (Dumping, Emergency, LBS, SPA/BD, Offshore, Hazardous Wastes, ICZM Madrid), six thematic Regional Activity Centres (REMPEC at Malta, SPA/RAC at Tunis, INFO/RAC at Rome, PAP/RAC at Split, MED POL coordination at Athens, Plan Bleu at Marseille, SCP/RAC at Barcelona), the Mediterranean Action Plan since 1975 and the Mediterranean Strategy for Sustainable Development.

The 22-Party symmetry between Barcelona and Abidjan is suggestive of a similar political constituency but the operational outputs are fundamentally different. Barcelona has produced the 2008 SOx ECA proposal for the Mediterranean (in force 1 May 2025) and the NOx ECA at MEPC 79 (2022, in force 2025), substantive emission-control measures with major commercial implications. Abidjan has produced no equivalent emission-control proposal. Barcelona has the MAP Phase II strategic framework with quantified targets on water quality, biodiversity, marine litter and climate; Abidjan has a corresponding 2022-2027 work programme but with substantially less specific targets and a much smaller funded delivery capacity. Barcelona maintains around 300 SPAMI listings in its Specially Protected Areas of Mediterranean Importance register; Abidjan has no equivalent register.

The differential is partly explainable by the higher per-capita GDP of Mediterranean states (the EU members and Israel in particular) versus the WACAF states, partly by the EU integrating funding stream that finances around 40 percent of MAP delivery, and partly by the longer operational history of the Mediterranean regime (30 years from 1995 versus 21 years from 1984 to comparable 2005 maturity).

Secretariat funding constraints + convention activity gap

The under-resourcing of the Abidjan Convention Secretariat is the single most-cited operational constraint on the regime. The Abidjan Convention Trust Fund is structured on the standard UNEP Regional Seas pattern: mandatory annual contributions from Contracting Parties assessed on a regional scale, voluntary contributions from Parties and donors, and project-specific extra-budgetary funding for substantive programmes. The mandatory contributions are calibrated to the UN scale of assessments with a regional adjustment, and yield a core annual budget of approximately USD 1.0 to 1.5 million in mandatory contributions plus around USD 2 to 4 million in extra-budgetary project funding.

The arrears on mandatory contributions have been a persistent issue. UNEP/Abidjan COP reports from 2017, 2021 and 2024 each note that around 40 to 60 percent of Parties are in arrears on mandatory contributions at any given time, with cumulative arrears running into several million USD and forcing the Secretariat to defer or cancel work programme activities. The arrears pattern reflects domestic budget constraints (most acutely in the post-conflict states, the small island Parties, and the Sahelian states), shifts in environmental administrative priority, and in some cases pure administrative friction in moving inter-ministerial transfers through national treasury systems.

The funding gap manifests most visibly in the slow tempo of COP cycles (intervals of 2 to 4 years rather than the biennial pattern formally specified), the limited frequency and operational scope of intersessional Working Groups, the absence of permanent Regional Activity Centres, and the dependence on donor-driven project cycles for substantive delivery. The GEF-funded GCLME and BCLME programmes have served as de facto operational arms of the Convention, but their cyclical nature (each project runs for 4 to 7 years before the next funding tranche) creates discontinuities in implementation that a permanently funded Secretariat would absorb.

2017 COP12 Calabar/Abidjan + 2024 COP14 Pointe-Noire

The COP cycle of the Abidjan Convention has been irregular since 1984. The First COP was held in Abidjan in 1984 soon after entry into force. Subsequent COPs have been: COP2 (1987 Abidjan), COP3 (1991 Cape Coast, Ghana), COP4 (1996 Pretoria), COP5 (2001 Yaoundé), COP6 (2003 Pointe-Noire), COP7 (2005 Lagos), COP8 (2007 Dakar), COP9 (2011 Accra), COP10 (2012 Pointe-Noire, where the ICZM Protocol was drafted), COP11 (2014 Cape Town), COP12 (2017 Abidjan, with the parallel Calabar meeting finalising the Mangrove Protocol), COP13 (2020 Abidjan, virtual under COVID-19), and COP14 (Pointe-Noire 2024).

The COP12 (2017) was the most consequential session of the modern era of the Convention. It adopted the Calabar Mangrove Protocol, approved the WACAF Marine Litter Strategy 2017-2022, restructured the Secretariat staffing complement, and approved a substantive 5-year work programme with a focus on plastic pollution, climate adaptation and the Calabar Protocol implementation. The session is widely cited as the inflection point at which the Convention emerged from a long period of low-activity drift back into a substantive programme of regional cooperation.

The COP14 (Pointe-Noire 2024) was hosted by the Government of the Republic of the Congo and adopted the WACAF Marine Plastic Pollution Strategy 2024-2030, the Climate-Adaptation Programme for the WACAF Coast, a strengthened Reporting Framework modelled on OSPAR, and a high-level political declaration on Blue Economy financing in the WACAF region. The COP14 was supported by GEF-8 funding of around USD 25 million for plastic pollution and around USD 15 million for climate adaptation, plus parallel commitments from the EU Global Gateway initiative, Norway, and the AfDB Blue Economy trust fund.

Belt and Road Maritime + China-Africa cooperation

The People’s Republic of China has emerged since the early 2000s as the largest single bilateral partner of the WACAF coastal states across the maritime sector. Chinese investment encompasses port infrastructure (the Lekki Deep Water Port in Lagos, the Kribi Deep Water Port in Cameroon, the Pointe-Noire Container Terminal expansion in the Republic of the Congo, the Bagamoyo development to the east of the WACAF area), distant-water industrial fishing (the largest single industrial fishing fleet on the West African upwelling shelf), oil-and-gas equity participation (CNOOC and Sinopec in Nigerian and Angolan blocks), and the Forum on China-Africa Cooperation (FOCAC) ministerial track which sets the high-level political framework.

The maritime expression of the Belt and Road Initiative, the 21st Century Maritime Silk Road, formally extends to East Africa and the Indian Ocean rim, but in practice the WACAF region is folded into the broader China-Africa cooperation envelope through FOCAC and through the Sino-African Cooperation in Marine Affairs track. The China-Africa Climate Cooperation Centre, established in 2022 at the AU headquarters in Addis Ababa, is intended as the institutional anchor for China-Africa cooperation on marine environment and climate.

The Abidjan Convention engagement with China is, formally, through observer-state attendance at COPs and through bilateral cooperation between China and individual WACAF Parties. There is no programmatic China-WACAF instrument under the Convention as of 2026, although discussion at COP14 (Pointe-Noire 2024) framed a draft cooperation agenda with China focused on port-reception facility upgrades, fishery surveillance technology cooperation, and joint research on Atlantic-African ecosystem dynamics.

2030 outlook: plastic, climate, marine spatial planning

The Abidjan Convention’s outlook to 2030 is shaped by three interlocking pressures and three corresponding strategic responses.

First, marine plastic pollution. The Lagos-Cotonou-Lomé-Accra plastic loading is rising in step with urban population growth and is unlikely to peak before the late 2030s. The WACAF Marine Plastic Pollution Strategy 2024-2030 adopted at COP14 is the principal regional response, supported by the global plastic pollution treaty negotiations (the INC process under UNEP) which were due to conclude in 2025. The Convention’s regional architecture is well positioned to deliver the regional implementation arm of any global plastics treaty, provided the Secretariat funding gap is closed.

Second, climate adaptation. The Bight of Benin coastal-erosion crisis, the Niger Delta subsidence, the Sahelian saltwater intrusion and the small-island vulnerability of Cape Verde and São Tomé and Príncipe combine to make the WACAF region one of the most climate-vulnerable maritime regions on the planet. The Pointe-Noire ICZM Protocol (if adopted) would provide the binding regional anchor for climate-adaptation coastal planning, and the WACA programme provides the financing envelope. The 2030 outcomes are likely to include adoption of the ICZM Protocol or a successor instrument, expansion of the WACA programme to additional coastal states, and integration of the Convention’s Climate-Adaptation Programme with the Loss and Damage Fund under the UNFCCC.

Third, marine spatial planning and Blue Economy. The Convention has no explicit MSP mandate but the cross-cutting demand for it is rising, driven by the need to reconcile fisheries, oil-and-gas, shipping, coastal infrastructure, coastal tourism and conservation. The AU Blue Economy Strategy 2019 and the AfCFTA implementation create political demand for a regional MSP framework. The 2030 outcomes are likely to include a draft Convention Protocol on Marine Spatial Planning, regional cooperation on offshore wind and tidal energy site selection (a particularly active topic on the South African and Namibian coast), and adoption of a regional Blue Economy Charter building on the existing AU framework.

Limitations

The following caveats apply to any analysis relying on Abidjan Convention documentation.

Protocol in-force status. Only the 1981 Emergency Protocol is in force as of 2026. The Calabar Mangrove Protocol (2017) and the Pointe-Noire ICZM Protocol (2012 draft) carry no binding force on Parties that have not ratified the Calabar text, and no binding force at all until six ratifications are deposited. Analysts who cite these Protocols as operative are misstating the legal position.

Geographic scope boundaries. The Convention does not apply to warships and government vessels in non-commercial service, although Article 4(3) commits Parties to ensure that such vessels act consistently with the Convention so far as is reasonable and practicable. The Convention extends to internal waters of Parties only insofar as they have so notified the Secretariat, with the consequence that some major coastal lagoons, including the Lagos Lagoon, the Aby Lagoon and the Ébrié Lagoon, are not formally within the Convention area for regulatory purposes, though they are within the area for cooperation purposes.

Data quality. The quantitative assessments in this article, including the IUU fishing loss figure of USD 2.3 billion per year (FAO 2017), the plastic-discharge estimates from the Lagos-Cotonou-Lomé-Accra conurbation, and the hydrological discharge figures for the main rivers, carry substantial uncertainty. The FAO figure in particular is acknowledged as a low-end estimate; catch-reconstruction methods place the West African IUU loss at up to USD 3.5 billion per year. River-discharge figures derive from long-term averages and do not reflect post-2010 anomalies associated with shifting precipitation patterns in the Congo Basin.

Institutional capacity. The Abidjan Convention Secretariat is materially smaller and less well-funded than comparable bodies such as OSPAR, the Barcelona Convention MAP, or the Cartagena Convention CEP. The practical reach of any Convention obligation therefore depends heavily on the national implementation capacity of individual Parties, which varies across three orders of magnitude between South Africa and the smaller Sahelian or post-conflict states. Standard-setting by the COP does not translate automatically to on-the-ground compliance in states with thin environmental administration.

COP reporting gaps. The irregular COP cycle (intervals ranging from two to four years) and the persistent contribution arrears mean that the Abidjan Convention’s own reporting on implementation status is less current and less complete than its Mediterranean or North-East Atlantic counterparts. Figures on Protocol ratification status, national contingency plan coverage, and work programme delivery should be verified against the most recent COP documentation from the official Abidjan Convention Secretariat portal.

Scope of warships and non-commercial government vessels. Article 4(3) of the Convention commits Parties to ensure that warships and government vessels in non-commercial service act consistently with the Convention “as far as is reasonable and practicable” but does not bind those vessels to the full compliance regime. This carve-out follows the standard pattern of UNCLOS Part XII and the Barcelona and Cartagena Conventions but has operational significance on a coast where naval patrol vessels and coastguard cutters represent a material share of total maritime traffic in several Parties.

BCLME / BCC confusion. A further recurring error in secondary literature is to treat the Benguela Current Convention (BCC, signed Luanda 18 March 2013) as a Protocol of the Abidjan Convention or as a subsidiary body of it. The BCC is a legally independent treaty between Angola, Namibia and South Africa with its own entry-into-force and its own Secretariat at Swakopmund. The Abidjan Convention has no formal governance authority over the BCC. Where the two regimes address the same geographic waters (the Angola-Namibia EEZ overlap), the BCC’s ecosystem-based management obligations apply independently of any Abidjan Convention work programme commitment.

See also

Frequently asked questions

When was the Abidjan Convention adopted and when did it enter into force?
The Abidjan Convention was adopted at Abidjan, Côte d'Ivoire on 23 March 1981 and entered into force on 5 August 1984, after six states deposited instruments of ratification.
How many contracting parties does the Abidjan Convention have?
As of 2026 the Abidjan Convention has 22 Contracting Parties: all independent coastal states and offshore archipelagos along the Atlantic margin of Africa from Mauritania in the north to South Africa in the south.
Which protocols to the Abidjan Convention are currently in force?
Only one: the Protocol Concerning Cooperation in Combating Pollution in Cases of Emergency, adopted and signed at Abidjan on 23 March 1981 and in force from 5 August 1984. The 2017 Calabar Mangrove Protocol is not yet in force (pending its sixth ratification) and the Pointe-Noire ICZM Protocol of 2012 remains in draft form.
Does the Abidjan Convention area include any MARPOL Special Areas or IMO PSSAs?
No. There are no MARPOL Special Area designations and no IMO Particularly Sensitive Sea Areas on any part of the Atlantic-African coast covered by the Abidjan Convention. This is the most striking single regulatory gap on any major regional sea.
What is the relationship between the Abidjan Convention and the Benguela Current Convention?
The Benguela Current Convention (signed Luanda, 18 March 2013) is a free-standing instrument between Angola, Namibia and South Africa with its own Secretariat at Swakopmund, Namibia. It is operationally complementary to but legally distinct from the Abidjan Convention; it is not a Protocol of the Abidjan Convention.