
New Zealand agriculture contributed 50% of the country’s greenhouse gas emissions in 2020, an unusually high proportion by world standards. Dairy farming was responsible for about half of the 39.1 megatonnes of carbon dioxide equivalent (CO₂-eq) emitted, or 25% of all emissions.
Addressing the problem of New Zealand’s agricultural emissions has mainly focused on technical fixes aimed at reducing methane and nitrous oxide produced by livestock and fertiliser and relying on voluntary agreements with the industry.