Search Climate Insights Directory

Tanzania is a lower-middle-income country in East Africa characterized by steady GDP growth but significant gaps in human development and political stability. While the economy has grown at an average of 6% annually, the country faces persistent poverty and environmental challenges such as deforestation and soil erosion. Politically, the ruling Chama Cha Mapinduzi (CCM) maintains dominance, though the 2025 general elections were marked by irregularities, violence, and the suppression of opposition parties, leading to international condemnation and a deepening governance crisis.

The inventory identifies a diverse range of NbS in Uganda, primarily focused on wetland and catchment restoration, forest management, and agroforestry. These interventions address coupled challenges of food insecurity, water stress, and disaster risk. Key projects include the GCF FP034 wetland restoration and the CAPA Initiative in the Greater Virunga Landscape. While social inclusion is present, it is unevenly documented across the portfolio.

Since independence, African agriculture has lagged behind global productivity due to a lack of resource allocation, tenure reform, and infrastructure. Despite possessing 45% of the world's land suitable for sustainable production expansion, the continent remains the most food-insecure region globally, with yields remaining roughly half of the global average. Productivity is further hampered by conflict in states like Angola and DR Congo, extreme weather events, and significant deforestation, with 4 million hectares of forest lost annually. While the African Union's CAADP initiative aims to drive growth, most national budgets allocate only 5-7% to agriculture, leaving smallholder farmers—who provide 80% of sub-Saharan production—without essential inputs and market access.

The SUNCASA project has implemented nature-based solutions (NbS) across three Sub-Saharan African cities, planting 2.4 million trees and shrubs and restoring over 3,500 hectares of land within its first two years. In Dire Dawa, the project focuses on afforestation and agroforestry to combat soil erosion and improve food security. In Kigali, efforts center on riparian buffer zones and agroforestry to reduce flood risks. Johannesburg's primary focus is the removal of alien invasive species to protect water quality and biodiversity. The project integrates gender equality and social inclusion (GESI) to ensure marginalized groups participate in climate adaptation. Cost-benefit analyses indicate significant future savings in flood-related infrastructure and health expenses across all three cities.

The ESMP for Sakteng Wildlife Sanctuary (SWS) for 2026 outlines mitigation strategies for three primary activities: improving alpine meadows at Nakchungla, restoring degraded grazing land at Chabling, and improving waterholes across four sites. Categorized as a Category B project, the plan focuses on managing site-specific, reversible risks such as occupational health and safety, waste generation, and minor soil disturbance. It mandates the use of manual labor, personal protective equipment (PPE), and community engagement through local contractors and grievance redressal mechanisms to support the livelihoods of semi-nomadic herders while conserving biodiversity.

A three-year restoration project in North Mecha, Ethiopia, has successfully revived local water sources and improved food security through community-led land management. By implementing revegetation and soil conservation practices across 400 hectares, the project increased groundwater levels, extended stream flow into the dry season, and boosted crop production for 321 households.

The report evaluates the impact of SUNCASA-implemented nature-based solutions (NbS) in Dire Dawa, Ethiopia, focusing on the Dechatu River Catchment. Using the SAVi methodology, it projects that interventions including afforestation, agroforestry, and urban tree planting will generate a discounted net benefit of ETB 101.6 million from 2025 to 2050, with a benefit-cost ratio (BCR) of 1.36. The primary economic driver is the avoidance of flood-related infrastructure damage, valued at ETB 188.1 million. The assessment also highlights significant intangible benefits, such as avoided health costs from water pollution (ETB 65.8 million) and carbon sequestration (ETB 54.2 million). Sensitivity analyses indicate the project remains viable even with a 94% tree survival rate or under higher carbon pricing scenarios.

The document details the impact of the Restore Local initiative and TerraFund in Ghana's Cocoa Belt, where farmers are transitioning from monocropping to agroforestry. By integrating native trees, fruit trees, and beekeeping, farmers are combating soil erosion and climate instability while diversifying their income streams. The initiative has supported 15 non-profits and five local enterprises, resulting in 4.1 million trees planted and 9,300 hectares under restoration, contributing toward Ghana's national goal of restoring 2 million hectares of degraded land by 2030.

South American tree plantations are expanding by 5,000 km²/year, causing significant shifts in precipitation partitioning and water yields. In sloped terrains, plantations typically reduce water yields by an average of 40% compared to native vegetation, with the strongest effects seen in drier climates and with eucalypt species. In flat landscapes, plantations can trigger local salinization by switching the water balance from net recharge to net discharge, although they may remediate salinization where native woodlands were replaced by agriculture. In degraded (sub)tropical rolling landscapes, plantations can reduce erosion and stabilize flow, though total water yield is reduced and benefits may be negated by large-scale clear cutting.

The document reports on interviews with 1,500 farmers in ten African mountain regions, identifying increased temperatures, reduced fog, and erratic rainfall as primary climatic changes. These changes have led to lower yields for maize, cassava, and coffee, as well as reduced milk production and increased soil erosion. Farmers are adapting through on-farm strategies like changing planting dates and adopting new crop varieties, though wealth and conflict significantly influence the capacity to adapt. The brief recommends improving access to credit and markets, enhancing knowledge exchange, and accounting for the impacts of violent conflict in adaptation planning.

The document details how climate change is manifesting in African mountains through rising temperatures and erratic precipitation, leading to decreased crop yields and livestock production. It highlights that while farmers are adapting by changing planting dates and adopting new crop varieties, they face significant barriers such as limited access to credit and land, and the destabilizing effects of violent conflict.

The Umkhomazi catchment is a critical strategic water source area in KwaZulu-Natal, supporting 1.5 to 2 million people and high biodiversity. Despite producing 1,078 million m3 of water annually, only 15% is used due to seasonal flow patterns. The area faces threats from invasive alien plants, overgrazing, and abandoned farming. To address these, the Umkhomazi Catchment Working Group (UCWG) coordinates restoration efforts, including invasive species management, erosion control, and regenerative agriculture. Additionally, the Umkhomazi Water Project plans to construct two large dams, including the Smithfield Dam, to enhance water security for Durban and Pietermaritzburg.

The report evaluates the Nutrition Sensitive Agriculture Capacity and System Strengthening (NSA CASE) project (2019–2024) in Ethiopia's Oromia, Amhara, and Somali regions. Using the Sustainable Asset Valuation (SAVi) methodology, the analysis finds that investing in nature-based infrastructure—such as drought-tolerant crops, perennial fruit trees, and moisture-harvesting technologies—can yield a return of up to USD 2.37 for every USD 1 invested over 26 years. This total benefit is estimated at USD 46 billion (ETB 5,161 billion), encompassing avoided costs from floods and droughts, increased agricultural productivity, carbon storage, and reduced malnutrition.

The author contends that the global food system has reached 'peak land' and that decoupling agricultural land use from food production allows for the retirement of marginal land. By paying farmers to stop farming unproductive areas, the document suggests that environmental services can be restored and GHG emissions reduced by 20-40% if 5% of farmland is retired by 2030 and 10% by 2050.

The coffee sector in Mesoamerica, comprising approximately 580,000 producers—mostly smallholders with less than 5 hectares—is highly vulnerable to global price volatility and extreme weather events. Between 2000 and 2003, the region saw a 44% decrease in coffee trade earnings and the loss of 500,000 jobs for heads of households. While some farmers have adapted through organic production, fair trade, and social organization, others have been forced to diversify into non-agricultural activities or migrate. The document argues for a stronger public sector leadership to implement policies that combine indigenous knowledge with financial mechanisms (such as insurance and micro-credit) and social capital to improve long-term sustainability and climate resilience.

The Nature-Based Infrastructure Global Resource Centre analyzed the Bring Back Our Trees project in Kasese, Uganda, which aims to reforest 30,270 hectares to combat climate-driven floods and landslides. The analysis found that the nature-based infrastructure approach generates a total net benefit of USD 69.1 million, providing a return of USD 5.44 for every dollar invested. Beyond flood mitigation, the interventions support carbon sequestration, biodiversity, job creation, and soil erosion prevention.

The study analyzes LULC trends in Turkana, Narok, West Pokot, and Elgeyo Marakwet counties, finding that achieving a 10% forest cover target yields the most favorable environmental and agricultural outcomes by 2050. It warns against the 'Shamba system' of forest-to-cropland conversion and highlights the threat of invasive species, particularly Prosopis juliflora, in arid regions.

The report evaluates Mahembe Coffee, a small and medium-sized enterprise in Rwanda that produces, processes, and exports specialty coffee. Using the RAI Tool for Agribusiness, the study finds that the company generally maintains high compliance with responsible investment principles, largely driven by the founder's commitment to community development. Key strengths include fair pricing for farmers, inclusive governance, and environmental risk management. However, the report identifies risks related to the informal nature of its operations—such as a lack of written employment contracts—and the potential for this culture to wane as the business transitions to new shareholders. It recommends formalizing policies and procedures to ensure the continuity of its social and environmental standards.

The document evaluates the effectiveness of storage infrastructure, digital pest surveillance tools, and terracing for erosion control in Rwanda. While these initiatives have improved food security and pest management, the report identifies significant gaps, including the underutilization of cold storage, limited digital literacy among rural farmers, and an increase in high-risk erosion areas between 2020 and 2022.

The project aims to protect and restore the Congo Nile Divide (CND) landscape in Rwanda, focusing on an area of 444,600 hectares. It addresses vulnerabilities to landslides, floods, and soil erosion caused by climate variability and deforestation. The strategy involves three main components: mainstreaming climate adaptation into land-use planning, restoring natural forests and creating ecological 'stepping stones' for biodiversity, and enhancing rural livelihoods through agroforestry, beekeeping, and the distribution of fuel-efficient cookstoves. The project seeks $39.06 million in GCF grants, with additional co-financing from the Rwandan government, to benefit over 1.25 million direct beneficiaries.