The Tension Between Carbon Markets and Long-Term Indigenous Land Stewardship

Carbon markets have emerged as a cornerstone of global efforts to combat climate change, allowing entities to offset emissions by purchasing credits from projects that sequester or avoid greenhouse gases. In New Zealand, the Emissions Trading Scheme (NZ ETS, full name New Zealand Emissions Trading Scheme) plays a pivotal role, incentivizing activities like afforestation and reforestation. However, recent international research underscores a critical flaw: these markets often fail to reward ongoing stewardship of intact ecosystems, particularly those managed by Indigenous communities like Māori iwi (tribes). Instead, they prioritize restoration of degraded lands, potentially penalizing groups who have sustainably managed their whenua (land) for generations.

This dynamic raises profound questions for Aotearoa New Zealand, where Māori hold significant forested lands—approximately 570,000 hectares of native forests and 190,000 hectares of plantations—valued at $4.3 billion. As carbon prices climb (NZUs at $50.83 per tonne in late 2024), the pressure to convert marginal lands to carbon forestry intensifies, pitting short-term economic gains against cultural kaitiakitanga (guardianship) principles.

Decoding Additionality: Why Intact Lands Miss Out on Credits

At the heart of the issue lies 'additionality,' a fundamental requirement in carbon markets. Credits are granted only for verifiable emission reductions or sequestrations beyond what would occur under a business-as-usual baseline. Step-by-step, this process works as follows: (1) Establish a baseline scenario assuming no project intervention; (2) Measure additional carbon benefits attributable to the project; (3) Verify through independent audits. Intact Indigenous-managed lands, sustained through traditional practices like controlled burns or biodiversity enhancement, are often deemed 'business-as-usual,' ineligible for credits despite active maintenance amid threats like invasive species or climate shifts.

In Australia, a March 2026 Nature Climate Change paper by RMIT University's Professor Peter Macreadie and colleagues, including Yirrganydji custodian Brian Singleton, warns this creates a 'perverse outcome': rewarding past degraders via restoration while sidelining stewards. 'Carbon markets were designed to reward climate action, but our research shows they may be producing a perverse outcome: rewarding those who damaged land in the past while excluding Indigenous custodians,' Macreadie stated. While focused on Australia, the critique resonates in New Zealand's NZ ETS, where pre-1990 forests (many Māori-owned) are excluded from crediting.

New Zealand Universities Spotlighting the Risks

Local research from New Zealand universities echoes these concerns. Motu Economic and Public Policy Research, collaborating with Māori landowners, demonstrated in a 2007 project (with ongoing relevance) that native forest carbon farming on Māori land offers environmental, cultural, and economic co-benefits. Researchers Jason Funk and Suzi Kerr implemented reforestation systems generating Kyoto Protocol offsets, highlighting uptake barriers like governance structures.

University of Otago researchers, in submissions to ETS reviews, advocate including indigenous forests and Māori partnerships, critiquing exotic pine dominance that risks biodiversity loss and wildfire vulnerability. Their Centre for Sustainability calls for coordinated low-carbon research incorporating mātauranga Māori (Māori knowledge), warning ETS price signals alone insufficient without complementary policies.

Māori Land Use in the NZ ETS: Balancing Economics and Kaitiakitanga

New Zealand's NZ ETS, established under the Climate Change Response Act 2002, caps emissions and trades units (NZUs). Forestry dominates sequestration, with over 650,000 hectares registered by 2024. Māori lands, often collectively held under Te Ture Whenua Māori Act 1993, face unique challenges: financing hurdles, regulatory flux, and trade-offs between exotic pines (fast credits) and natives (slower but culturally vital).

• Economic Pull: Pines yield quick revenue for marae (meeting houses) or dividends.
• Cultural Pushback: Iwi prioritize natives for mauri (life force) and whakapapa (genealogy).
• Risks: ETS-driven 'carbon forestry wave' per Parliamentary Commissioner for the Environment (PCE) 2025 report, threatens food sovereignty and jobs.

NIWA research (2025) reveals native forests sink more CO2 than assumed, bolstering arguments for inclusion.Explore New Zealand higher ed opportunities in environmental policy.

Photo by Matthew Stephenson on Unsplash

Case Studies: Māori Carbon Initiatives and Lessons Learned

Ōpepe Farm Trust exemplifies proactive stewardship, reducing nitrates pre-regulation but facing 'grandparenting' penalties. Motu's Waro Project with rural Māori showed native reforestation viable, sequestering CO2 while aiding erosion control and mahinga kai (food gathering).

In Te Tairāwhiti, iwi blend plantations for income with native buffers post-Cyclone Gabrielle (2023), using ETS funds for resilience. Coastal blue carbon research by Landcare Research and mana whenua (local Māori) explores wetland credits, filling policy gaps.Motu Māori carbon farming project.

Stakeholder Voices: Iwi, Experts, and Policymakers

Māori leaders like those from Te Rūnanga o Ngāi Tahu decry tokenistic consultations, demanding Te Tiriti partnership. PCE's 'Alt-F Reset' (2025) urges ETS reforms for natives. Otago's He Ara Waiora framework integrates tikanga (customs) like kaitiakitanga for waiora (wellbeing).

RMIT's Dr. Vanessa Johnston proposes recognizing stewardship in additionality: 'Integrity frameworks that recognize stewardship, not just restoration.' NZ experts align, calling for avoided degradation credits amid threats like feral animals.

Broader Impacts: Biodiversity, Economy, and Culture

Exotic carbon forestry risks biodiversity loss (kauri dieback, pine blight) and wildfires (321 ha/year 1980s to 1,159 ha/year recent). For Māori, locked land uses hinder papakāinga (villages). Yet natives enhance resilience, per NIWA.

• Job shifts: Farming to forestry reduces employment.
• Cultural: Loss of open whenua erodes identity.
• Economic: $4.3B assets at stake.

Pathways Forward: Reforming Markets for Inclusion

Solutions include:

• Revise additionality for stewardship credits.
• Incentivize natives via ETS tweaks (Otago submissions).
• Māori-led governance, per PCE.
• Hybrid models: Pines fund natives.

Universities like Otago and Auckland drive policy via Endeavour Fund programs.RMIT Nature Climate Change paper.

Photo by Matthew Stephenson on Unsplash

New Zealand's Academic Leadership in Climate Equity

Institutions like Motu, Otago, and AUT pioneer solutions. Otago's low-carbon platform integrates Māori knowledge; AUT warns of 'nature markets' exploitation. Careers in this field abound—browse higher ed jobs in sustainability.

Outlook: Towards Equitable, Indigenous-Led Climate Action

Reforms could unlock Māori stewardship's potential, sequestering more via natives while honoring Te Tiriti. As ETS evolves (second Emissions Reduction Plan 2026-30), university research guides inclusive paths. For academics eyeing impact, rate your professors, find higher ed jobs, or seek career advice. Engage via comments below.