Madagascar

Rooted in science and grown with community. This is where restored land meets healthier communities.
[what we do]

The problem, and our answer.

The Problem
In southeastern Madagascar, a lack of resources forces rural communities to rely on their natural environment for daily survival, leading to environmental degradation that drives a high disease burden.

Inadequate sanitation infrastructure leaves communities without access to clean drinking water and exposed to diarrheal diseases, while deforested land creates the standing water habitat where malaria-carrying mosquitoes breed.
Our Solution
We reforest degraded landscapes, focusing on coffee-centric agroforestry, to reduce the spread of diarrheal diseases and malaria.

Planting coffee and other trees restores the land's ability to absorb water, reducing both the standing water where mosquitoes breed and the flooding that spreads waterborne illness, all while creating premium fair-wage economic opportunities for these rural communities.
Reforestation as Medicine
We are planting a polyculture of coffee, bonara, banana, and pigeon pea on deforested land. Tree canopy intercepts rainfall, root systems increase soil infiltration, and evapotranspiration returns water to the atmosphere.

Less runoff means less standing water, fewer mosquitoes, and reduced malaria transmission, while also reducing the flooding that spreads contaminated water and drives diarrheal disease.
By the Numbers
We are actively reforesting 2.5 acres in the Farafangana district and pay farmers double the local wage.

100% of profits from coffee sales are reinvested into clean water infrastructure, including sixty 5,000 liter rainwater harvesting tanks serving three villages.
Rooted in science and grown with community. In Madagascar, restored land and healthier communities grow together.

Southeastern Madagascar has some of the world's highest rates of childhood diarrheal disease and malaria, and both are shaped by how rainwater moves across a deforested landscape. We track where that water goes so we can test whether restoring forest changes the risk.

Madagascar records the world’s highest age-standardized incidence and death rates for childhood diarrheal disease and was one of three countries responsible for 58% of the global increase in malaria cases between 2023 and 2024 (Zhu et al., 2025; WHO, 2025). We work in the Mananjary and Farafangana districts in southeastern Madagascar, which carry the country’s second-highest diarrheal and highest malaria burden, respectively (Institut National de la Statistique & ICF, 2022; Malaria Atlas Project, 2024). Although precipitation is the fundamental input instigating the pathways of water-related diarrheal disease and malaria exposure, the hydrological responses to precipitation that govern the mechanisms of diarrheal pathogen transport and malaria vector habitat formation remain poorly integrated into operational health risk assessments and underutilized as intervention levers, particularly in rural Madagascar, where no prior work has examined either disease through a catchment-scale water balance investigation (Smith et al., 2013; Boithias et al., 2016; Rice et al., 2021). We use a unified catchment water balance framework to determine where water goes, where it stays, and how its spatial extent, persistence, and magnitude shape exposure conditions for both enteric pathogens and malaria.

2x
The wage we pay farmers versus the local going rate.
100%
Of coffee profits reinvested into clean water infrastructure.
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support the mission
Aerial view of standing water pooling across a deforested valley in Madagascar
[our purpose]

Fractile Institute works in Madagascar to break the cycle between poverty, deforestation, and disease.

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more about us
[the pilot land]

Reforest Degraded Landscapes. Restore Health.

2,041 coffee and native seedlings planted across pilot hillsides beside the Manombo Special Reserve.
Sixty 5,000 liter rainwater harvesting tanks now serve three villages with clean drinking water.
Multispectral drone imagery and water pathogen testing track how the landscape and health respond.
Tree
canopy
Safe
Water