Summary
This analysis quantifies the nationally significant climate mitigation potential of natural climate solutions—ecosystem protection, improved management, and restoration—across tropical countries. The authors identify that cost-effective NCS could deliver 6.56 Pg CO2e yr−1 globally, with over half of tropical nations able to mitigate more than 50% of national emissions through such approaches. The work demonstrates that with appropriate financing and political commitment, many tropical countries can achieve substantial contributions to enhanced NDCs whilst simultaneously advancing sustainable development goals.
UK applicability
Whilst focused on tropical contexts where ecosystem carbon storage potential is greatest, the methodological framework for assessing cost-effective land stewardship and linking climate mitigation to sustainable development could inform UK land-use policy and nature-based solutions strategies. UK applicability is limited given different biomes and governance contexts, though the principles of ecosystem-based mitigation remain relevant to temperate restoration efforts.
Key measures
Cost-effective tropical NCS potential measured in Pg CO2e per year at less than 100 US$ per Mg CO2e; proportion of national emissions mitigable through NCS by country; governance and financial capacity factors influencing feasibility
Outcomes reported
The study quantified cost-effective natural climate solutions (NCS) potential across tropical countries, measuring greenhouse gas mitigation from ecosystem protection, improved management, and restoration. It assessed how NCS contribution could meet national emissions reduction targets and support sustainable development goals.
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