Kenya is often celebrated as the agricultural heart of East Africa, a nation where farming is not just an economic sector but the very backbone of society. It’s an industry that accounts for roughly 21% of the country’s GDP and employs more than 70% of its national labour force. Yet, despite this dominance, the sector is under immense pressure. Climate change is a constant threat, with recurring droughts and floods that devastate livelihoods. Furthermore, decades of intensive farming have led to severe soil degradation, leaving many smallholder farmers with depleted, less productive land.

This combination of climate vulnerability and poor soil health presents a monumental challenge to Kenya’s food security and economic stability. But within this crisis lies a powerful, potentially home-grown solution: biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More. Unlike Latvia’s challenge with forestry waste, Kenya’s opportunity is rooted in its vast quantities of agricultural residues – from coffee husks and maize stalks to sugarcane bagasse. When these materials are converted into biochar, they can simultaneously sequester carbon, regenerate degraded soils, and build climate resilience for millions of smallholder farmers.

Kenya’s Agricultural Crossroads: Small Farms, Big Problems

Kenya’s agricultural system is largely made up of smallholder farmers, who produce most of the country’s food and cash crops. This makes the system particularly vulnerable to climate shocks and soil degradation. According to the UN, over 80% of Kenya’s land is classified as arid or semi-arid, making it extremely susceptible to drought. The soil in these regions is often fragile and prone to erosion, a problem made worse by rural poverty, poor farming practices and deforestation.

These challenges are compounded by a reliance on synthetic fertilizers, which are often too expensive for smallholder farmers. The overuse of these chemicals can also degrade soil health over the long term, creating a vicious cycle of dependency and diminishing returns. The result is a nation of farmers caught between low productivity, high input costs, and an increasingly unpredictable climate.

This is where biochar offers a transformative path. Instead of expensive, imported fertilizers, biochar can be produced locally from readily available waste. This not only empowers farmers by giving them a low-cost, effective soil amendmentA soil amendment is any material added to the soil to enhance its physical or chemical properties, improving its suitability for plant growth. Biochar is considered a soil amendment as it can improve soil structure, water retention, nutrient availability, and microbial activity.   More, but it also creates a decentralized, regenerative system that addresses soil health and climate change at the same time.

Biochar as a Triple Win: Climate, Crops, and Community

For Kenya, biochar isn’t just a single-purpose tool; it’s a strategic solution that delivers three major benefits:

1. Climate Mitigation and Adaptation: Kenya’s agricultural sector is the largest source of the country’s greenhouse gas emissions, primarily from land use and livestock. Biochar production, through the pyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More of agricultural waste, offers a way to reverse this. It sequesters carbon in the soil, preventing it from re-entering the atmosphere. Additionally, by improving soil moisture retention, biochar makes crops more resilient to the longer dry spells that are a hallmark of a changing climate. Due to climate-related fluctuations in the Kusi monsoon, rainfall is often irregular and intense. Biochar can help to remedy this dual-pronged issue; it can combat drought prevalence with its improved water holding capacityWater holding capacity is the amount of water that soil can retain. Biochar can significantly increase the water holding capacity of soil, improving its ability to withstand drought conditions and support plant growth.   More, and it can combat flash flooding by making the soil more permeable and porous. From a 2024 study on 6 regions in Kenya, here is the potential carbon mitigation scope for agricultural residue-derived biochar across 6 counties:

Image (captured in the study) shows the potential carbon avoidance of using biochar, both in terms of the carbon removed through the stable burying of the material itself, as well as the carbon emissions avoided by using less fertilizer – a key cause of agricultural emissions. 

2. Increased Crop Yields and Food Security: Biochar acts as a powerful soil conditioner. Its highly porous structure holds water and nutrients, making them more available to plants. This directly leads to improved crop productivity. A recent study on maize systems in six Kenyan counties found that the repeated application of biochar could result in a total production gain of 309,909 metric tons over four years. For a country facing perennial food supply deficits, this potential for increased yield is critical for achieving food security.
3. A Catalyst for a Circular Economy: Biochar production closes the loop on agricultural waste. Instead of being burned or left to decompose, which releases methane and CO2, crop residues like maize stover and sugarcane bagasse are converted into a high-value product. The scope of agricultural residues for biochar can be seen below. This creates new local economies and jobs, particularly in rural areas where opportunities are limited. The pyrolysis process also generates syngasSyngas, or synthesis gas, is a fuel gas mixture consisting primarily of hydrogen and carbon monoxide. It is produced during gasification and can be used as a fuel source or as a feedstock for producing other chemicals and fuels.   More, which can be used to power the production facility or provide clean energy for local communities.

Table (extracted from here) shows the amount of biochar that could be produced by each county analysed in the study.

From Pilot Projects to a National Movement: Kenya’s Biochar Ecosystem

While biochar may be in its early stages in Kenya, the country is already a hub for innovative biochar projects and companies. This is a key difference from many other nations and is a testament to Kenya’s entrepreneurial spirit and the urgent need for climate solutions.

Companies like Bio-Logical and Biosorra are leading the charge. Bio-Logical, based in the Mt. Kenya region has secured significant funding to scale up its operations. It focuses on transforming agricultural waste from large agribusinesses into a high-quality bio-fertilizer that is then distributed to smallholder farmers. This “hub-and-spoke” model is highly effective. Biosorra, on the other hand, is recognized as the largest industrial biochar facility in Africa and was a winner of the XPRIZE Carbon Removal competition. Kenyan companies are proving that they are beyond capable of meeting global standards, becoming leading innovators in the biocarbon market. 

There is also scope for production at the local level. Due to the harsh heat in Kenya, the need for drying is significantly less pronounced than in Europe or North America, meaning biochar production can go ahead with less additional equipment. Companies like WasteX and PlantVillage+ have been developing mobile pyrolysis units with manufacturers on the continent, which cost in the range of $10,000-15,000. Options like this could represent a viable localised approach to biomassBiomass is a complex biological organic or non-organic solid product derived from living or recently living organism and available naturally. Various types of wastes such as animal manure, waste paper, sludge and many industrial wastes are also treated as biomass because like natural biomass these More circularity, once the potential carbon credit revenue streams are accounted for. 

The Kenyan government is also creating a supportive policy environment. The Kenya Climate Smart Agriculture Strategy (2017-2026) acknowledges the need for practices that minimize greenhouse gas emissions from agricultural production systems. The successes of these pilot projects, and the growing interest from international investors, provide a clear roadmap for how the government can scale up biochar through policy support and investment.

Paving the Way for a Resilient Future

For Kenya to truly harness biochar’s potential, the next steps are clear. The government should work to integrate biochar into its national agricultural and climate strategies, recognizing it not just as a niche solution but as a cornerstone of a resilient food system. This could involve offering financial incentives for biochar adoption, promoting partnerships between private companies and farmer cooperatives, and developing national quality standards to ensure the integrity of the product.

By focusing on this powerful, locally sourced technology, Kenya has the opportunity to lead the way in Africa, creating a model that addresses both climate change and food insecurity head-on. It is also really key to me that we do not just talk about improving food production, as food accessibility in the region is a far more pressing issue. Any transition towards producing and using biochar in the region should be equitable and scalable. Innovation is key but this can often lead to sustainable development being intellectualised beyond accessibility. This, in my view, is the biggest risk involved with integrating biochar into Kenya’s environmental strategy. Therefore, co-creation and community consultation is essential for ensuring biochar projects are successful and contextually relevant.

Key Takeaways:

• A Critical Economic Backbone: Agriculture is not just a sector but the foundation of Kenya’s economy, contributing roughly 21% of the country’s GDP and employing over 70% of its national labor force.
• Significant Food Security Gains: The use of biochar could result in a total maize production gain of 309,909 metric tons over four years in six Kenyan counties, offering a direct solution to food supply deficits.
• Vast Climate Vulnerability: With over 80% of Kenya’s land classified as arid or semi-arid, the country is highly susceptible to drought, making biochar’s ability to improve soil moisture retention a crucial adaptation strategy.
• Accessible Local Solution: The availability of mobile pyrolysis units costing between $10,000 and $15,000 enables decentralized, local production of biochar, empowering smallholder farmers and creating new rural economies.

Ready to see how biochar can transform another country’s future? Let me know which nation you’d like me to cover next in this series! Feel free to drop me an email at: ralph@biochartoday.com