Methane emission from cattle production is considered an essential part of total GHG emissions from the agricultural sector. Common Agricultural Policy introduced agri-environment climate measures (AECM) based on voluntary contracts between farmers and state authorities, which can be used as instruments to reduce GHG emissions, including methane. The paper presents the study’s results1 aimed at identifying farmers’ preferences regarding actions for mitigating methane emission at dairy farms and an optimal solution for the most efficient, assuming a given mitigation target, set of actions. Discrete Choice Experiment and optimisation procedure were applied. The results show that the most efficient from taxpayers’ point of view are biofilters supported by Result-Based contracts.
