
The idea is grounded in science.
Three years of academic literature, made readable.
What happens to the body in the soil
The biochemistry of decomposition - what research shows
An average 70kg body produces 28-42 liters of necroleachate after burial. In the calcareous soils typical of Israel, volatile fatty acids (VFAs) - acetic, propionic, butyric - are nearly fully neutralized within weeks due to high pH of 7.5-8.5.[1]
In a dry Mediterranean climate, decomposition differs fundamentally from European models: extreme moisture deficit slows putrefactive bacteria, leading to tissue desiccation. Full skeletonization occurs within 4-6 months under outdoor exposure - vs. two years in humid environments.[2]
Trees and fungi near the burial site accelerate mineralization and return nitrogen and phosphorus to the soil - a process known as the Cadaver Decomposition Island (CDI). Studies show significant changes in plant species richness near green burial sites after 3-5 years.[3]
The environmental comparison
Green burial vs. conventional burial - the data
| Metric | Conventional Burial | Green Burial | Cremation |
|---|---|---|---|
| CO₂ emissions (kg) | 150-300 | Negative - carbon sink | 160-200 |
| Energy (MJ) | 1,500-2,500 | Under 100 | 4,000-8,000 |
| Decomp. fluids to soil | Delayed, isolated | Immediate, active layer | Ash - minimal fluid |
| Heavy metals | High (lead, zinc) | Very low | Medium (mercury) |
[4] Yaar Ad Analysis (2025), based on Green Burial Council & Health Council of the Netherlands
Why the Judean Foothills - not a coincidence
Hydrogeological research shows that calcareous-clayey soil acts as a natural barrier to decomposition fluids. The DRASTIC aquifer vulnerability index for the Judean Foothills is rated low risk - among the lowest in Israel.[5]
Mediterranean climate with 450-550mm annual rainfall - ideal for Palestine Oak (Quercus calliprinos) that needs no irrigation after two years. A tree living 600 years, drought-resistant, and more fire-resistant than any other tree species in Israel.[6]
The graves no one visits
Israel contains hundreds of thousands of abandoned graves. Families who emigrated, were forgotten, or dispersed. Graves no one has visited in decades - grey stones in grey rows, in the sun.
Yaar Ad is the solution that prevents abandonment: when the tree is the grave, it continues living even without visitors. It adds to the soil, the air, the wildlife - it doesn't remain a silent stone. The forest grows wild even when no one visits.
The wild heart of the forest is there - at the center, where the first were buried. Old trees, shaded, with their own history already.
The question scientists are still studying
PFAS and pharmaceutical residues - scientific transparency
Modern bodies contain PFAS ("forever chemicals") in 97% of the population. There is not yet sufficient research on their fate in green burial specifically in Mediterranean soil.[7]
"Scientific transparency is part of our commitment. Yaar Ad is committed to groundwater monitoring from opening day."
Carbon Sequestration - The Numbers
Every grave is also a tree. Every tree is also an active carbon store.
A mature Palestine Oak (age 20-40) absorbs an average of 12-22 kg CO₂ per year. In Yaar Ad's first phase - 3,000 trees - annual absorption at peak maturity is projected at 36-66 metric tons of CO₂.[3]
22 kg
CO₂ per year / mature tree
66 tons
CO₂ / year - 3,000 trees
6,600 tons
Projected 100-year cumulative
For comparison - conventional burial in a recycled wood coffin with an average concrete headstone emits 150-300 kg CO₂ per person. Each Yaar Ad burial thus doesn't just reduce emissions - it becomes a generational carbon asset.
Carbon market note: Yaar Ad is examining certification pathways through Verra VCS and Gold Standard. Carbon credits may become an independent revenue stream supporting perpetual site maintenance.
Bibliography
- PMC - "Could Necroleachate Be the Cemetery's Sewage?" (pmc.ncbi.nlm.nih.gov)
- Biogeochemical and Hydrogeological Dynamics of Necro-Taphonomic Systems - Mediterranean Climate Analysis (2025)
- PubMed - "Soil elemental changes during human decomposition" (pubmed.ncbi.nlm.nih.gov)
- Yaar Ad Research - Supplementary Environmental Comparison Analysis (2025)
- Semantic Scholar - "Groundwater Vulnerability Assessment using the DRASTIC Index"
- Cranfield University - "Contribution of Natural Burials to Soil Ecosystem Services"
- NIEHS - "Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS)"
- Health Council of the Netherlands - "Admissibility of Human Composting" (2025)
For specific scientific questions
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