'Solid-fluid-gas': the state of knowledge on carbon-sequestration potential of agroforestry systems in Africa

- The science of high carbon sequestration potential of agroforestry systems is solid.
- The practice of estimating the potential is in a fluid state: lacks rigor and uniformity.
- Many estimates are of poor scientific quality ('hot air').
- Standardized, rigorous estimation procedures are needed for capturing the potential.