Only part of the population impacted. 2.3.2. Options for Agriculture Sector. Table 5: Mitigation Options in Agriculture Sector. Options. Justification for Ranking / Priority. High Priority. Improve Irrigation and Water Management. High emission reduction potential. Prioritized in numerous strategy / policy documents. High sustainable development benefits. Cost is reasonable. Manage water in rice cultivation to control release of methane from agricultural soils and introduce low water dependent rice varieties.