Impact
READ MOREThe forecast is unusually specific. NOAA's August 13 ENSO Diagnostic Discussion places the probability of a historic El Niño at 69% for October–December 2026. China's National Climate Center independently confirms sea-surface temperatures have already reached 2.64°C in the first half of August, exceeding the 2.5°C super-El Niño threshold. For carbon project developers with cookstove deployments across East Africa, the question is not whether the rains will come — but whether the hardware in the field can survive them.
The IGAD Climate Prediction and Applications Centre (ICPAC), convening 11 East African meteorological agencies at its 74th Greater Horn of Africa Climate Outlook Forum in Kigali on August 17–18, assigned greater than 90% probability of above-normal rainfall for October–December 2026 across southern Ethiopia, central-southern Somalia, north-eastern Kenya, the Lake Victoria Basin, Burundi, Rwanda, and western Tanzania. Several of these zones are expected to exceed 400 mm of precipitation.
These are the same countries where millions of cookstove carbon credits have just been authorized under Article 6.2 — Rwanda with 5.69 million credits, Uganda with 10 million tonnes, Tanzania with 425,000 stoves under its first Letter of Authorization. The infrastructure for international carbon transfer is becoming real at precisely the moment when the physical infrastructure on the ground is about to face its most severe climate stress test in a decade.
The corrosion mechanics are well understood but rarely discussed in carbon project planning. When ambient humidity sustains above 85% for prolonged periods — exactly what sustained flooding produces — the thin passivation film that protects metal surfaces breaks down. Research conducted in Nigeria's coastal and mangrove environments measured carbon steel corrosion rates of 1.73 mm per year, climbing to 2.31 mm per year in coastal marine conditions. Even in non-saline but consistently humid tropical zones, the protective oxide layer never stabilises.
For thin-gauge metal components — combustion chamber walls of 0.5–1.0 mm thickness, grate bars, door frames — this means structural compromise can occur within a single wet season. Even stoves with strong baseline durability face accelerated micro-cracks, coating delamination, and load-bearing corrosion under sustained El Niño flooding — the kind of stress a Kenyan or Rwandan kitchen will experience during the worst rains the region has faced since 1997.
A Malawi cookstove evaluation documented the progression under ordinary conditions: hairline cracks appear in stove sides, widen over months of daily use, and eventually progress to full structural breakage where pieces of the stove body are displaced. Critically, damaged stoves continued to be counted as "in use" — but with degraded efficiency and safety. Under El Niño-accelerated corrosion, this timeline compresses dramatically.
Stove failure is not a single event. It is a cascade — and each stage quietly undermines the emission reductions a project has claimed.
High humidity and standing water compromise protective coatings on metal surfaces. Combustion chamber walls, grates, and structural supports begin oxidising. The stove still works — but the degradation clock has started.
Micro-cracks and warping reduce combustion efficiency. Fuel consumption rises. Emissions per cooking event increase. But because most monitoring systems track stove presence, not stove condition, the decline goes undetected in project records.
As stoves become unreliable, households add traditional three-stone fires back into daily use. Kenya studies already document 83.1% stacking rates in normal years. El Niño-accelerated degradation pushes this rate higher — and every traditional fire relit alongside a damaged stove erodes the project's claimed emission reductions.
Stoves are technically "distributed" and "in use" on paper. In practice, combustion performance has degraded, stacking has increased, and actual fuel savings fall short of projections. The gap between claimed and real emission reductions widens — but remains invisible to monitoring systems that were designed for adoption, not degradation.
Field studies of improved cookstove lifespans in East Africa typically show 4–6 years for standard improved metal stoves under normal climatic conditions. At SSM Eco, our stoves are engineered for 7–10 year field lifespans. These benchmarks assume regular weather patterns — no sustained flooding, no extended humidity above 85%, no accelerated corrosion from standing water.
The 2015–16 El Niño affected over 60 million people across Eastern Africa, triggered food aid for 10.2 million Ethiopians, and caused $4.9 billion in crop and livestock losses across the Horn of Africa. The 2026 event is forecast to be stronger.
At SSM Eco, we approach the durability question from the manufacturing side — because that is where the degradation chain begins, and where it can be interrupted. Two engineering decisions are particularly relevant for projects facing El Niño conditions:
Berkeley Air Front Range Testing independently assessed our stoves — achieving Tier 5, the highest ISO durability performance level, including extended burn, quenching, and thermal stress tests that simulate field conditions far beyond a single cooking cycle.
Climate shocks do not wait for baseline reassessment cycles. The 2026 El Niño will stress-test every cookstove deployed across East Africa simultaneously — and the projects that emerge with defensible emission reductions will be those whose hardware was engineered to endure the extreme weather conditions forecast for their deployment zones.
As climate variability intensifies, the need for hardware engineered to withstand extreme weather conditions becomes critical. Projects that treat hardware supply chain decisions as part of their MRV strategy — not separate from it — will hold stronger evidence for every claimed tonne of emission reduction.
If your project faces El Niño-affected deployment zones, the engineering margin of your hardware is part of your credit integrity. Let's discuss how material selection, ceramic redundancy, and proven durability can protect the evidence behind your emission reductions.
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