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The document examines the process and impact of an economic study in Uganda that found the cost of inaction on climate change to be 20–24 times higher than the cost of adaptation. This evidence facilitated the integration of climate change into national development plans (NDP II and NDP III), the elevation of the Climate Change Unit to a Department, and the passage of the National Climate Change Act 2021. Key success factors included continuous engagement with high-level leadership, an in-country presence, and the use of layered communication products like documentary films. However, challenges remain in sub-national implementation and the lack of dedicated climate budget lines in the national budgeting system.

The report argues that the cost of inaction regarding climate change in Uganda is significantly higher than the cost of adaptation, estimating annual losses between US$3.1 bn and 5.9 bn by 2025 compared to an adaptation cost of US$406 m over five years. It identifies critical vulnerabilities in water availability, agricultural exports (particularly coffee), biomass energy supply, and infrastructure resilience, while highlighting that many proposed adaptation measures are 'no regrets' investments that provide immediate development benefits.

The study examines the vulnerability of Arabica coffee in Bududa, Uganda, to climate variability and projected climate change. It finds that yields have declined due to poor management and extreme weather, including droughts and landslides. The report argues that transitioning from 'Business as Usual' (BAU) to Climate Smart Agriculture (CSA)—defined here as planting shade trees, mulching, and trench construction—significantly improves the internal rate of return (IRR) for farmers, even under future climate scenarios. While costly, the study concludes that a combined programme of CSA and institutional support is economically justified, with a projected IRR of around 36%.

The report estimates that making Uganda's infrastructure climate-resilient will cost between US$52-66 million annually by 2020, rising to US$638-1,157 million by 2050. Residential buildings are the most affected sector, accounting for approximately half of all adaptation costs. The study also projects that annual damages from extreme events, if frequency doubles every 25 years, could reach US$738-3,294 million by 2050. Key adaptation priorities include climate-proofing public buildings and developing resilient transport standards.

The document examines the vulnerability of Arabica coffee in Uganda's Bududa District to climate variability and projected climate change. It compares 'Business as Usual' (BAU) with 'Climate Smart Agriculture' (CSA) scenarios, finding that CSA—which includes tree planting, mulching, and trench construction—offers a higher Internal Rate of Return (IRR) than BAU under both current and future conditions. The study suggests that combining CSA with institutional support could sustain coffee cultivation, though it notes that estimates are preliminary and require further research and piloting.