Global literature review and survey of implementation constraints on natural climate solutions
Natural Climate Solutions - protection, restoration, and improved management of lands and waters that reduce greenhouse gasses - have large climate change mitigation potential. However, lack of comprehensive information on implementation challenges hinders the adoption of Natural Climate Solutions and the delivery of near-term mitigation. Using a global survey of Natural Climate Solutions projects and a systematic review of recent studies, we map 46 constraints in eight categories, yielding 15,572 geo-referenced pathway-constraint observations from 501 studies and projects in 137 countries covering 20 of 22 United Nations subregions. Social-behavioral, Knowledge, and Government-Organizational are the most-reported constraint categories, and lack of policy coordination or implementation capacity the most-observed constraint and most frequently top-ranking constraint for pathways and subregions. Despite broad congruence, top constraint and category rankings vary among subregions and pathways, respectively. We find that projects generally encounter diverse sets of challenges. Without enabling efforts, near-term mitigation from Natural Climate Solutions may remain well below its biophysical potential.
Authors
- Lauren E. Oakes (ORCID: https://orcid.org/0000-0002-0049-1925)
- Margaret Hegwood (ORCID: https://orcid.org/0000-0003-4848-1563)
- Hilary Brumberg (ORCID: https://orcid.org/0000-0002-2514-1411)
- Waverly Eichhorst (ORCID: https://orcid.org/0000-0002-2700-5210)
- Mieke Bourne (ORCID: https://orcid.org/0000-0001-5633-6206)
- Anna LoPresti (ORCID: https://orcid.org/0000-0003-4801-1529)
- Lisa McCullough
- James T. Erbaugh (ORCID: https://orcid.org/0000-0002-0602-9045)
- Timm Kroeger
- Kemen Austin (ORCID: https://orcid.org/0000-0002-7690-8774)
- Andrew Kinzer (ORCID: https://orcid.org/0000-0001-9521-5175)
- Arundhati Jagadish (ORCID: https://orcid.org/0000-0002-6360-6179)
- Dow Martin
- Zhixian Luo
- Priya Shyamsundar
- Marcos Sanjuán
- Pedro H. S. Brancalion
- Peter W. Ellis
- Marta Echavarria
Institutions
- Dartmouth College (US)
- Universitat Autònoma de Barcelona (ES)
- The Nature Conservancy (US)
- Catholic Relief Services (US)
- Conservation International (US)
- World Resources Institute (US)
- Wildlife Conservation Society (US)
- Universidade de São Paulo (BR)
- University of Colorado Boulder (US)
- The Nature Conservancy (CO)
- Kenya School of Government (KE)
- International Center for Tropical Agriculture (KE)
- Instituto Nacional de Biodiversidad (EC)
- Universidad Católica de El Salvador (SV)
- Dartmouth Hospital (GB)
- World Agroforestry Centre (KE)
- Nature Conservation Foundation (IN)
- Stanford University (US)
Publication Details
- Journal
- Nature Communications
- Published
- 2026-03-14
- DOI
- https://doi.org/10.1038/s41467-026-70482-4
- Primary Topic
- Sustainability and Climate Change Governance
- Type
- article
- Field-Weighted Citation Impact
- 0.00