Nitrous oxide
Nitrous oxide (N₂O) reduction projects target emissions from agricultural soils — the largest source of anthropogenic nitrous oxide — primarily by optimizing fertilizer application rates, timing, and methods. Since N₂O has a global warming potential roughly 265 times that of CO₂ over 100 years, even modest reductions in agricultural N₂O emissions generate substantial carbon credits. Projects typically require rigorous monitoring of soil conditions and fertilizer usage.
Overview of approved methodologies
| Standard | Methodology name | Version(s) |
|---|---|---|
CAR  | CAR China Adipic Acid Production Protocol | v 1.0 |
CAR | CAR U.S. Adipic Acid Production Protocol | v 1.0 |