Carbon Accounting Methodology

Narrow claims, stated assumptions.

Every CO2e number on the platform should be traceable to a versioned methodology, not a mood.

Carbon accounting boundary

The central claim is narrow: flowers diverted from uncontrolled dumping are treated as avoided anaerobic decomposition. We do not count avoided water-treatment emissions or downstream health benefits because the project does not measure them directly.

Formula

`kg flowers x decomposition_fraction x methane_yield x GWP100 = kg CO2e avoided`

The active central scenario uses methane GWP100 of 27.9 from IPCC AR6 and conservative decomposition assumptions.

Scenario	Decomposition fraction	Methane yield	Result
Low	0.20	conservative	0.25 kg CO2e / 100 kg flowers
Central	0.35	moderate	0.42 kg CO2e / 100 kg flowers
High	0.55	upper bound	0.72 kg CO2e / 100 kg flowers

Sources

Moulik Jain, Convergence Journal, Optimizing Rural Water Quality Using Indigenous Plant-Based Coagulants · accessed 2 Jun 2026

IPCC AR6, methane GWP100 = 27.9 · accessed 13 May 2026

India solid-waste methane accounting guidance · accessed 13 May 2026

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