2026-01-06 コンコルディア大学
＜関連情報＞
- https://www.concordia.ca/news/stories/2026/01/06/indigenous-led-conservation-efforts-match-or-surpass-similar-initiatives-when-properly-funded-new-research-shows.html
- https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2025EF006427
先住民主導の自然に基づくソリューションが、カナダにおけるネットゼロ排出と生物多様性目標を整合させる Indigenous-Led Nature-Based Solutions Align Net-Zero Emissions and Biodiversity Targets in Canada
C. Alejo, G. Reed, H. D. Matthews
Earth’s Future Published: 23 October 2025
DOI:https://doi.org/10.1029/2025EF006427
Abstract
Indigenous-led Nature-based Solutions (“Indigenous-led NbS”), such as Indigenous Protected Conserved Areas and Indigenous Guardians programs, may represent a unique opportunity to advance climate and biodiversity targets grounded in Indigenous self-determination. Previous studies have comprehensively explored the scope and potential environmental outcomes of Indigenous-led NbS. Here, we build on this literature to assess how government support for Indigenous-led NbS influences climate and biodiversity outcomes. Specifically, we estimate the contribution of Indigenous-led NbS funded by the federal Government of Canada in conserving carbon stocks and biodiversity across terrestrial ecosystems. Using geospatial analysis and quasi-experimental methods, our results indicate that Indigenous-led NbS are as effective as existing Protected Areas in terms of climate change mitigation and biodiversity conservation. Moreover, our results demonstrate that government funding for Indigenous-led NbS is associated with moderate yet significant avoided land use emissions relative to Protected Areas. Based on topic-modeling applied to Indigenous-led NbS descriptions, climate and biodiversity outcomes emerge from holistic approaches to governance, intergenerational knowledge exchange, and climate-biodiversity action. Thus, government funding to Indigenous-led NbS may align biodiversity and climate outcomes with some aspects of Indigenous self-determination. The long-term alignment of these outcomes will require extended and sustained funding as well as full recognition of the rights of Indigenous Peoples.
Plain Language Summary
Nature-based Solutions (NbS) aim to enhance nature to tackle pressing challenges like climate change and biodiversity loss. Across the globe, Indigenous Peoples are leading NbS (i.e., Indigenous-led NbS) such as Indigenous Protected Conserved Areas and Indigenous Guardians programs. Previous studies have explored their potential environmental outcomes. Our study builds on these studies to understand how government financial support to Indigenous-led NbS influences carbon storage in plants and soil and biodiversity conservation. We focus on Canada as it offers valuable insights about the ways substantial government support may influence Indigenous-led NbS. Our results show that Indigenous-led NbS carbon storage and biodiversity conservation outcomes are similar to existing Protected Areas. Moreover, government funding to Indigenous-led NbS was related to lower carbon emissions from land use change compared to Protected Areas. By analyzing Indigenous-led NbS project descriptions, we found that environmental outcomes emerge from reciprocal relationships between people and the natural world. For example, knowledge exchange between youth and elders is essential for environmental health. Overall, government support for Indigenous-led NbS may align climate and biodiversity benefits with some aspects of Indigenous self-determination, but these positive outcomes will only continue with long-term financial commitment and full recognition of Indigenous rights.
Key Points
- Indigenous Lands are as effective as existing Protected Areas in conserving carbon stocks and maintaining different aspects of biodiversity
- Government funding for Indigenous-led Nature-based Solutions is associated with moderate avoided land use emissions relative to Protected Areas
- A sustainable alignment of biodiversity, climate, social, economic, and cultural outcomes requires full recognition of Indigenous rights
