Overview
The African Development Bank (AfDB) has issued a stark assessment of the economic and humanitarian toll that a looming "super" El Niño could exact across Africa. Anthony Nyong, the AfDB’s director for climate change and green growth, said the weather phenomenon - which is linked to severe droughts, flooding and storms across the continent - is likely to reduce GDP in heavily affected countries by about 1% to 2% on average. That contraction translates into an estimated $10 billion to $20 billion cumulative economic loss for Africa.
Magnitude and economic context
Nyong described the $10-$20 billion estimate as the first such figure provided by a major multilateral development bank in relation to the current El Niño outlook. He did not provide a country-by-country breakdown for that estimate. The AfDB had previously forecast, in May, 4.2% economic growth for Africa this year, rising to 4.4% in 2027, under the conditional assumption that the U.S.-Israeli war on Iran eases. Those forecasts predated warnings that the El Niño event could become a so-called "super" or "Godzilla" occurrence if Pacific Ocean warming trends continue.
Channels of impact
Nyong warned that the hazards associated with a strong El Niño reach beyond immediate weather damage to broader fiscal and financial vulnerabilities. Disaster-related destruction of infrastructure can disrupt transport, power and water systems, potentially weakening government revenues and increasing expenditures. That dynamic risks creating loan repayment difficulties when borrowers - public or private - are affected, tightening conditions for banking sectors already exposed to strained sovereign and corporate balance sheets.
Governments may find themselves trapped in what Nyong termed a "climate finance trap": constrained public resources force authorities to divert funding from health, education or infrastructure toward emergency response and reconstruction, eroding long-term resilience.
Agriculture, fisheries and food prices
The AfDB has quantified some sectoral losses tied to the El Niño pattern. Farmers across the continent are estimated to be facing nearly $330 million in lost income this year. Agricultural losses more broadly have been cited at about $327 million, while fisheries productivity is expected to fall by between 1% and 4% as rising sea temperatures and storm activity undermine catches.
Food security risks are acute: the bank expects the price of maize - a staple in many affected countries - to double in response to production shortfalls and market pressures. Those food price spikes compound the immediate humanitarian consequences and exert further strain on household budgets and government food subsidy programs.
Humanitarian and migration pressures
Nyong flagged a range of countries the AfDB has identified as likely to experience particularly severe impacts: Sudan, South Sudan, the Democratic Republic of Congo, Somalia, Mali, Burundi and Nigeria. He warned that, as conditions deteriorate, there will be significant population movements. "When this El Niño comes there is going to be mass migration," he said, emphasizing that people facing sudden food and water shortages typically move in search of livelihoods.
Competition for scarce resources - grazing land, water and arable land - could intensify fragility in vulnerable regions and exacerbate existing tensions.
Historic and recent precedents
Officials point to the 2023-2024 El Niño episode, which caused severe drought in Southern Africa alongside heavy rains and flooding in East Africa, producing widespread crop failures, surging food prices and record sea-level spikes along coastlines. The AfDB also cited Mozambique’s protracted recovery after Cyclone Idai in 2019 as an example of how major storms can inflict multi-year damage to economies and infrastructure.
Bank response and finance needs
The AfDB plans a bank-wide seminar in September to assess how the expected El Niño could affect both pipeline and existing investments. Nyong said the bank stands ready to restructure projects to help countries manage impacts and to coordinate with multilateral financing sources such as the Green Climate Fund. He also listed the Adaptation Fund, Climate Investment Funds and emerging loss-and-damage financing mechanisms as potential supplementary sources of support.
On financing needs, Nyong cited an October United Nations estimate that developing countries would need around $365 billion in a single year by 2035 to confront climate change, while international public adaptation finance amounted to $26 billion in 2023. Against that backdrop, he said Africa could require as much as $100 billion this year because of the anticipated El Niño strength.
He characterized the immediate adaptation finance gap this way: the need was already approximately $50 billion for the next 12 months, but the strong El Niño adds another $30 billion to $50 billion to that requirement.
Policy and resilience message
Nyong framed the response in terms of pre-emptive resilience-building. "It is cheaper to build a fence around a precipice than to pay for expensive ambulances to wait at the bottom for people to fall," he said, urging greater investment in preparedness to reduce the human and fiscal costs of future shocks.
Summary
A potential "super" El Niño could cut GDP by 1-2% in the hardest-hit African countries, producing a continent-wide economic hit of $10 billion to $20 billion, while pressuring public finances, banks and infrastructure. The AfDB warns of doubled maize prices, substantial agricultural and fisheries losses, and likely mass migration from severely affected areas. The bank is preparing internal reviews and is seeking to marshal and restructure finance with multilateral partners to help countries cope.
Key points
- The AfDB estimates a $10-$20 billion economic loss for Africa if a "super" El Niño materializes, reducing GDP in the most affected countries by about 1% to 2%.
- Sectoral impacts include nearly $330 million in lost farm income, approximately $327 million in agricultural losses, and a 1% to 4% drop in fisheries productivity; maize prices are expected to double, heightening food security concerns.
- Public finances, infrastructure and banking sectors are at risk as governments face higher reconstruction costs and potential loan-performance deterioration; migration pressures are expected to rise in fragile regions.
Risks and uncertainties
- Uncertainty over the geographic distribution and intensity of El Niño impacts - the AfDB did not provide a country-level breakdown for the $10-$20 billion estimate, leaving exposure concentration unclear for investors and policymakers. This affects sovereign and municipal debt risk assessments.
- Fiscal pressures from disaster response could force reallocations from critical budgets like health, education and infrastructure, worsening long-term resilience and creating contingent liabilities for governments and banking systems.
- Humanitarian displacement and competition for natural resources could deepen regional fragility, with implications for stability and for sectors dependent on rural production and transport infrastructure.
Tags
Africa, ElNino, climate, AfDB, migration