Primary agriculture is responsible for about half of New Zealand’s gross GHG emissions. This share is large relative to other OECD countries, due to the prevalence of livestock-based agriculture and the large share of renewable sources in the electricity mix. Most agricultural emissions are methane emissions from dairy, sheep, and beef cattle.
In its 2021 Nationally Determined Contribution (NDC) to the Paris Agreement, New Zealand committed to reducing national net GHG emissions by 50% below gross 2005 levels by 2030, an economy-wide target covering, among others, agriculture and other land use sectors. This corresponds to a 41% reduction on a multi-year emissions budget for the 2021-30 period.
The Zero Carbon Amendment Act 2019 (Zero Carbon Act) sets separate long-term emission reduction targets for long-lived and short-lived GHG emissions, including a target for biogenic methane. In particular, the emissions reduction targets set out in the Zero Carbon Act aim to reduce all GHG emissions, except biogenic methane, to net zero by 2050; and reduce gross biogenic methane emissions to 10% below 2017 levels by 2030 and 24-47% by 2050.
An independent Climate Change Commission advises on setting carbon budgets and policies to meet them. On 31 May 2021, the Climate Change Commission provided the government with its final advice on the first three emissions budgets (2022-2025, 2026-2030, 2031-2035) and on the proposed policy direction for New Zealand’s first Emissions Reduction Plan (ERP) which was published in May 2022. Key actions include introducing an agricultural emissions pricing mechanism by 2025, establishing a new Centre for Climate Action on Agricultural Emissions to drive a step change in mitigation technology innovation and uptake on farms, and supporting producers to make changes through programmes to support needs and aspirations of Māori and climate-focused extension and advisory services.
The New Zealand Emissions Trading Scheme (NZ ETS) is the main policy tool to reduce GHG emissions. It requires companies in the agricultural supply chain (e.g. meat processors, dairy processors, nitrogen fertiliser manufacturers and importers) to report their agricultural emissions. However, these companies are not required to pay for their emissions. The NZ ETS also imposes a cost on emissions from transport fuels, electricity production, synthetic GHGs, waste and industrial processes, including in primary sectors.
One of New Zealand’s major projects tackling climate change is He Waka Eke Noa - the Primary Sector Climate Action Partnership. This brings together resources, expertise and knowledge from industry, Māori and the government. The partnership aims to implement a framework by 2025 to reduce agricultural greenhouse gas emissions specifically and build the sector’s resilience to climate change. This is to be achieved through: 1) measuring, managing and reducing on-farm emissions; 2) recognising, maintaining or increasing integrated carbon sequestration on farms; and 3) adapting to a changing climate. The framework will include incentivising farmers and growers to take action through an appropriate pricing mechanism by 2025, in line with legislation.
In mid-2022, the He Waka Eke Noa Partnership provided the government with its recommendations for a farm-level emissions pricing system. In this system a levy is raised from the sector, with discounts given for on-farm sequestration and the uptake of mitigation technologies. The Climate Change Commission contributed its own advice on agricultural emissions. Officials across government departments worked with He Waka Eke Noa partners to develop advice for ministers on the pricing mechanism for greenhouse gas emissions from agriculture. The government intends to introduce legislation in 2024. If an alternative pricing system is not implemented by 1 January 2025, the Climate Change Response Act 2002 states that agricultural emissions will be priced under the NZ ETS.
Recognising the need to drive increased afforestation, the government introduced a package of changes to the NZ ETS in 2020, designed to stimulate afforestation and ease forestry owners’ compliance burden. In 2023 these changes came into force, including a shift in forestry accounting to a simpler averaging system, and also a category for permanent forestry.
The One Billion Trees programme aims to double the previous planting rate (including re-planting following harvest and new planting) to plant one billion trees over the decade from 2018-28. The programme is supported both by direct government investment (such as the One Billion Trees Fund and joint ventures between Crown Forestry and private landowners), and adjustments to regulatory settings (such as the Emissions Trading Scheme) to encourage and support tree planting.
The One Billion Trees Fund was launched in November 2018 as part of the One Billion Trees programme. The fund has provided NZD 77.8 million (USD 49 million) for tree planting grants to landowners including farmers, in order to generate environmental, landscape and productivity benefits. It has also provided NZD 98.8 million (USD 63 million) for partnership initiatives to help in overcoming the barriers to tree planting. The fund closed to new applications in June 2021 but the programme is continuing until 2028 for grants that have already been approved.
Within the SFF Futures programme, a total of 40 projects were completed between July 2022 and April 2023. The Ministry for Primary Industries has committed up to NZD 258 million (USD 164 million) since the inception of the SFF Futures Fund in 2018. The total ministry and industry investment in SFF Futures programmes as of 30 April 2023 was approximately NZD 555 million (USD 352 million).
The New Zealand Government researches and develops mitigation technologies to reduce agricultural GHG emissions. It does so primarily through the Centre for Climate Action on Agricultural Emissions (CCAAE), comprised of the New Zealand Agricultural Greenhouse Gas Research Centre (NZAGRC), and a joint venture between government and industry leaders, as well as in co-ordination with the member countries of the Global Research Alliance on Agricultural Greenhouse Gases (GRA).
As part of the Climate Emergency Response Fund, New Zealand has allocated nearly NZD 339 million (USD 215 million) to accelerate the development of high-impact technologies and practices to reduce agricultural greenhouse gas emissions. To achieve these objectives, the new Centre for Climate Action on Agricultural Emissions has been established. The centre has two key components – a new public–private joint venture with some of New Zealand’s top companies and an enhanced NZAGRC. These play complementary roles in driving research and development for reducing biological emissions. The new centre will compliment work done by He Waka Eke Noa, and will also include knowledge-based approaches to support Māori land owners with climate change mitigation.
The NZAGRC, funded by the Ministry for Primary Industries and the Ministry of Business, Innovation and Employment, brings together nine organisations that conduct research to reduce agricultural GHG emissions. The research focuses on practical ways to reduce on-farm methane and nitrous oxide emissions while improving productivity and sequestering soil carbon, as well as Māori-focused research and future farm systems’ research. Industry partners co-invest in some of the research led by NZAGRC. The Pastoral Greenhouse Gas Research Consortium (PGgRc) holds the intellectual property (IP) generated by the research and develops commercialisation pathways for greenhouse gas mitigation solutions to reach livestock farmers.
The GRA, a network of 67 member countries and 29 partner organisations, was established in 2009. New Zealand hosts the Secretariat and GRA Special Representative, and co-chairs its Livestock Research Group. The GRA facilitates collaborative and evidence-based dialogue and knowledge sharing. New Zealand collaborates with other GRA members on research, development and extension of technologies and practices to deliver more climate-resilient food systems without growing GHG emissions. New Zealand builds future capability and capacity through running training programmes and supporting GRA scholarship programmes in developing countries, including in South-East Asia and southern and eastern Africa. New Zealand funds international collaborative efforts to accelerate global research in mitigating GHG emissions from agriculture, especially for pastoral livestock farming, and co-funds and participates in several international research calls designed to decrease agricultural emissions.7