Abstract
The expansion of agroforestry could provide substantial climate change mitigation (up to 0.31 Pg C yr−1), comparable to other prominent natural climate solutions such as reforestation. Yet, climate-focused agroforestry efforts grapple with ambiguity about which agroforestry actions provide mitigation, uncertainty about the magnitude of that mitigation and inability to reliably track progress. In this Perspective, we define agroforestry as a natural climate solution, discuss current understanding of the controls on farm-scale mitigation potential and highlight recent innovation on emergent, high-resolution remote sensing methods to enable detection, measurement and monitoring. We also assess the status of agroforestry in the context of global climate ambitions, highlighting regions of underappreciated expansion opportunity and identifying priorities for policy and praxis.
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Data availability
All data used in this study are publicly available from their original providers via the supplementary materials and/or requests to the corresponding authors of the originating peer-reviewed publications, except the summary data we gathered about previous agroforestry meta-analyses and the agroforestry site geographic coordinate data that we collected from the primary literature. We have made all data available in our GitHub repository (http://github.com/naturalclimatesolutions/AF_as_NCS; https://doi.org/10.5281/zenodo.8209212).
Code availability
All code used for this study is provided at http://github.com/naturalclimatesolutions/AF_as_NCS (https://doi.org/10.5281/zenodo.8209212).
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Acknowledgements
We thank the Bezos Earth Fund for their generous grant to the Nature Conservancy, which funded the time of D.E.T.H., M.A., S.Y., S.W. and S.C.C.-P. We also thank all attendees of the Nature Conservancy’s 2021 workshop ‘Agroforestry as a Natural Climate Solution: Cultivating the Science’, for their engagement and eager contributions to the discussion and debate that developed into this work. We thank N. Wolff, L. Marx, P. Alava and others for their reading and feedback on earlier drafts. We thank V. Reed at Vin Design for his detailed and persistent work in finalizing Fig. 1. T.S.R. was supported by the One CGIAR Livestock and Climate Initiative. B.T. was partly supported by the University of Missouri Center for Agroforestry and the US Department of Agriculture, Agricultural Research Service, under agreement no. 58-6020-0-007; any opinions, findings, conclusion or recommendations expressed in this publication are those of the authors and do not necessarily reflect the view of the US Department of Agriculture.
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D.E.T.H., S.C.C.-P., S.Y., M.A., D.B., R.C., S.K., T.S.R., S.S.-H., F.S., M.S., B.T. and S.W. conceived the study and analyses. D.E.T.H., S.C.C.-P., S.Y., R.C., T.S.R., M.S. and B.T. gathered the data. D.E.T.H. analysed the data and prepared the figures, with input from all authors. D.E.T.H. and S.C.C.-P. wrote the manuscript, with contributions from all authors.
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Terasaki Hart, D.E., Yeo, S., Almaraz, M. et al. Priority science can accelerate agroforestry as a natural climate solution. Nat. Clim. Chang. 13, 1179–1190 (2023). https://doi.org/10.1038/s41558-023-01810-5
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DOI: https://doi.org/10.1038/s41558-023-01810-5