Science and policy to combat desertification: The institutional response to a global challenge

Víctor M. Castillo Sánchez


Desertification is a controversial concept whose nature, extent, causes, and potential solutions are still debated. This paper reviews the arguments put forward for considering desertification a global environmental challenge. We also analyse the institutional response within the United Nations system, especially that of the United Nations Convention to Combat Desertification (UNCCD). Thus, the most significant elements of the desertification debate are analysed with respect to their scientific and political dimensions. The text concludes by discussing the need to establish an integrated framework for assessing and responding to desertification that is validated by a science-policy interface.


UNCCD; drylands; land degradation; drought; science-policy interface

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Akhtar-Schuster M., Amiraslani, F., Diaz Morejon, C. F., Escadafal, R., Fulajtar, E., Grainger, A., Kellner, K., Khan, S. I., Perez Pardo, O., Sauchanka, U., Stringer, L. C., Reda, F., & Thomas, R. J. (2016). Designing a new science-policy communication mechanism for the UN Convention to Combat Desertification. Environmental Science & Policy, 63, 122–131.

Carr, S., & Mpande, R. (1996). Does the definition the issue matter? NGO influence and the international Convention to Combat Desertification in Africa. The Journal of Commonwealth and Comparative Politics, 34(1), 143–166.

Corell, E. (1999). The negotiable desert: Expert knowledge in the negotiations of the convention to combat desertification. Linköping Studies in Arts and Science No. 191. Linköping University.

King, C., & Thomas, D. S. G. (2014). Monitoring environmental change and degradation in the irrigated oases of the Northern Sahara. Journal of Arid Environments, 103, 36–45.

Martínez-Valderrama, J., Guirado, E., & Maestre, F. T. (2020). Desertifying deserts. Nature Sustainability, 3, 572–575.

Martínez-Valderrama, J., Sanjuán, M. E., del Barrio, G., Guirado, E., Ruiz, A., & Maestre, F. T. (2021). Mediterranean landscape re-greening at the expense of South American agricultural expansion. Land, 10(2), 204.

Mirzabaev, A., Wu, J., Evans, J., García-Oliva, F., Hussein, I. A. G., Iqbal, M. H., Kimutai, J., Knowles, T., Meza, F., Nedjraoui, D., Tena, F., Türkeş, M., Vázquez, R. J., & Weltz, M. (2019). Desertification. In P. R. Shukla, J. Skea, E. Calvo Buendia, V. Masson-Delmotte, H.-O. Pörtner, D. C. Roberts, P. Zhai, R. Slade, S. Connors, R. van Diemen, M. Ferrat, E. Haughey, S. Luz, S. Neogi, M. Pathak, J. Petzold, J. Portugal Pereira, P. Vyas, E. Huntley, K. Kissick, M. Belkacemi & J. Malley (Eds.). Climate change and land: An IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems. IPCC.

Mortimore, M. (2016). Changing paradigms for people-centred development in the Sahel. In R. Behnke & M. Mortimore (Eds.), The end of desertification? (p. 65–98). Springer.

Mortimore, M., Anderson, S., Cotula, L., Davies, J., Faccer, K., Hesse, C., Morton, J., Nyangena, W., Skinner, J., & Wolfangel, C. (2009). Dryland opportunities: A new paradigm for people, ecosystems and development. IUCN, IIED, i UNDP/DDC.

Porter, G., & Brown, J. W. (1991). Global environmental politics. Westview Press.

Safriel, U. (2009). Deserts and desertification challenges but also opportunities. Land Degradation and Development, 20, 353–366.

Stafford-Smith, D. M. (2016). Desertification: Reflections on the mirage. In R. Behnke & M. Mortimore (Eds.). The end of desertification? (p. 539–560). Springer.

Stafford-Smith, D. M., & Reynolds, J. F. (2002). The Dahlem desertification paradigm: A new approach to an old  problem. In J. F. Reynolds & D. M. Stafford-Smith (Eds.), Global desertification. Do humans cause deserts? (p. 403–424). Dahlem University Press.

Stringer, L. (2008). Can the UN Convention to Combat Desertification guide sustainable use of the world´s soils? Frontiers in Ecology and the Environment, 6(3), 138–144.

Thomas, R. J., Akhtar-Schuster, M., Stringer, L. C., Marques, M. J., Escadafal, R., Abraham, E., & Enne, G. (2012). Fertile ground? Options for a science-policy platform for land. Environmental Science & Policy, 16, 122–135.

Thomas, D. S. G., & Middleton, N. (1994). Desertification: Exploding the myth. John Wiley & Sons.

Tiffen, M., Mortimore, M., & Gichuki, F. (1994). More people less erosion: Environmental recovery in Kenya. John Wiley.

Toulmin, C. (2001). Lessons from the theatre: Should this be the final curtain call for the Convention to Combat Desertification? WSSD Opinion Series. International Institute for Environment and Development.

Toulmin, C., & Brock, K. (2016). Desertification in the Sahel: Local practices meets global narrative. In R. Behnke & M. Mortimore (Eds.), The end of desertification? (p. 37–64). Springer.

UNCCD. (1994). The United Nations Convention to Combat Desertification in those countries experiencing serious droughts and/or desertification, particularly in Africa. Bonn, Germany. Secretariat of the United Nations Convention to Combat Desertification.

Verstraete, M. M. (1986). Defining desertification: A review. Climate Change, 9, 5-18.

Vogel, C., H., & Smith, J. (2002). Building social resilience in arid ecosystems. In J. F. Reynolds & D. M. Stafford-Smith (Eds.), Global desertification. Do humans cause deserts? (p. 149–166). Dahlem University Press.


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