The Paris Agreement established a global framework for limiting temperature rise to 1.5–2°C, yet its treatment of nitrous oxide reveals significant gaps in international climate governance. Understanding these gaps is essential for developing truly comprehensive climate strategies.
NDC Coverage
While the Paris Agreement requires parties to submit Nationally Determined Contributions (NDCs) covering all greenhouse gases, analysis of submitted NDCs shows that N₂O mitigation measures are far less specific and ambitious than those for CO₂ and methane. Agriculture — the dominant N₂O source — receives only cursory treatment in most NDCs.
Countries with specific N₂O targets: ~35%
Countries with agricultural GHG policies: ~60%
Required N₂O reduction for 1.5°C: ~20% by 2030
Current trajectory reduction: ~5% by 2030
The Agriculture Problem
Unlike energy-sector CO₂, N₂O from agriculture is politically sensitive because it directly affects food production. Farmers in many countries resist emission regulations, and governments fear food security implications of policies that reduce nitrogen fertilizer use. The challenge is designing policies that incentivize efficiency rather than restrict production — a distinction that has proven difficult to operationalize.