Climatic Change

, Volume 105, Issue 1–2, pp 207–222 | Cite as

Malnutrition and conflict in East Africa: the impacts of resource variability on human security

  • Pedram RowhaniEmail author
  • Olivier Degomme
  • Debarati Guha-Sapir
  • Eric F. Lambin


Changes in climate, along with anthropogenic pressures, impact vegetation productivity and related ecosystem services on which human security relies. The impacts of these climate changes on society will be experienced both through changes in mean conditions over long time periods and through increases in extreme events. Uncertainties remain on how short-term changes in ecosystems influence human security. Most studies analyzing the relationship between human security and climate are at the country level, ignoring fine-grained spatial heterogeneity in local climatic and socio-economic conditions. Here, we used detailed spatio-temporal information extracted from wide-swath satellite data (MODIS) to examine the impact of interannual variability in ecosystems on malnutrition and armed conflict in East Africa while controlling for other natural and socio-economic factors. The analysis was performed at a subnational and village scales. At the regional level, ecosystem variability was associated with malnutrition. This relationship was not statistically significant at the village level. At both levels of analysis, our results indicated that armed conflicts were more likely in regions with more vegetation. Results suggested that, in East Africa, increased levels of malnutrition were related to armed conflicts. They also showed the importance, in low-income countries, of local economic activity and accessibility to reduce the likelihood of malnutrition and insecurity.


Gross Domestic Product Food Insecurity Land Degradation Ecosystem Productivity Enhance Vegetation Index 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Barnett J (2003) Security and climate change. Glob Environ Change 13:7–17CrossRefGoogle Scholar
  2. Battisti DS, Naylor RL (2008) Historical warnings of future food insecurity with unprecedented seasonal heat. Science 323:240–244CrossRefGoogle Scholar
  3. Burnham KP, Anderson D (2002) Model selection and multimodel inference: a practical information-theory approach. Springer, New YorkGoogle Scholar
  4. Central Intelligence Agency (2008) The World Factbook, available at
  5. Collier P (2007) The bottom billion: why the poorest countries are failing and what can be done about it. Oxford University Press, OxfordGoogle Scholar
  6. Comenetz J, Caviedes C (2002) Climate variability, political crisis, and historical population displacements in Ethiopia. Environ Hazards 4:113–127CrossRefGoogle Scholar
  7. De Waal A (1997) Famine crimes: politics and the disaster relief industry in Africa. Indiana University Press, BloomingtonGoogle Scholar
  8. Degomme O, Guha-Sapir D (2007) Mortality and nutrition surveys by non-governmental organizations. Perspectives from the CE-DAT database. Emerging Themes in Epidemiology 4:11CrossRefGoogle Scholar
  9. ESRI (1993) Digital Chart of the World for use with ARC/INFO: data dictionary. ESRI, RedlandsGoogle Scholar
  10. Gleditsch NP (1998) Armed conflict and the environment: a critique of the literature. J Peace Res 35:381–400CrossRefGoogle Scholar
  11. Goldstone JA (2001) Demography, environment, and security. In: Diehl PF, Gleditsch NP (eds.) Environmental conflict. Westview, Boulder, pp 84–108Google Scholar
  12. Guha-Sapir D, van Panhuis WG, Degomme O, Teran V (2005) Civil conflicts in four african countries: a five-year review of trends in nutrition and mortality. Epidemiol Rev 27:67–77CrossRefGoogle Scholar
  13. Hendrix CS, Glaser SM (2007) Trends and triggers: climate, climate change and civil conflict in Sub-Saharan Africa. Polit Geogr 26:695–715CrossRefGoogle Scholar
  14. Homer-Dixon TF (1991) On the threshold: environmental changes as causes of acute conflict. Int Secur 16:76–116CrossRefGoogle Scholar
  15. Hosmer DW, Lemeshow S (1989) Applied logistic regression. Wiley, New YorkGoogle Scholar
  16. Howard P, Homer-Dixon T (1998) The case of Chiapas, Mexico. In: Homer-Dixon T, Blitt J (eds.), Ecoviolence: links among environment, population, and security. Rowman and Littlefield, Lanham, pp 19–66Google Scholar
  17. IPCC (2007) Climate change 2007: the physical science basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, CambridgeGoogle Scholar
  18. Kevane M, Gray L (2008) Darfur: rainfall and conflict. Environ Res Lett 3:034006CrossRefGoogle Scholar
  19. Linderman M, Rowhani P, Benz D, Serneels S, Lambin EF (2005) Land-cover change and vegetation dynamics across Africa. J Geophys Res 110:D12104CrossRefGoogle Scholar
  20. Meier P, Bond D, Bond J (2007) Environmental influences on pastoral conflict in the Horn of Africa. Polit Geogr 26:719–735CrossRefGoogle Scholar
  21. Moon BK (2007) A climate culprit in Darfur. The Washington PostGoogle Scholar
  22. Nordås R, Gleditsch NP (2007) Climate change and conflict. Polit Geogr 26:627–638CrossRefGoogle Scholar
  23. Nordhaus WD (2006) Geography and macroeconomics: new data and new findings. Proc Natl Acad Sci U S A 103:3510–3517CrossRefGoogle Scholar
  24. Parry M, Rosenzweig C, Iglesias A, Fischer G, Livermore M (1999) Climate change and food security: a new assessment. Glob Environ Change 9:51–67CrossRefGoogle Scholar
  25. Percival V, Homer-Dixon T (1998) Environmental scarcity and violent conflict: the case of South Africa. J Peace Res 35:279–298CrossRefGoogle Scholar
  26. Raleigh C, Urdal H (2007) Climate change, environmental degradation and armed conflict. Polit Geogr 26:674–694CrossRefGoogle Scholar
  27. Rockström J, Steffen W, Noone K, Persson A, Chapin FS, Lambin EF, Lenton TM, Scheffer M, Folke C, Schellnhuber HJ, Nykvist B, de Wit CA, Hughes T, van der Leeuw S, Rodhe H, Sörlin S, Snyder PK, Costanza R, Svedin U, Falkenmark M, Karlberg L, Corell RW, Fabry VJ, Hansen J, Walker B, Liverman D, Richardson K, Crutzen P, Foley JA (2009) A safe operating space for humanity. Nature 461:472–475CrossRefGoogle Scholar
  28. Rosegrant MW, Cline SA (2003) Global food security: challenges and policies. Science 302:1917–1919CrossRefGoogle Scholar
  29. Rowhani P, Linderman M, Lambin EF (2010) Global interannual variability in terrestrial ecosystems: sources and spatial distribution using MODIS-derived vegetation indices, social, and biophysical factors. Int J Remote Sens (in press)Google Scholar
  30. Sachs J (2006) Ecology and political upheaval, Scientific American, accessed online at
  31. Schaaf CB, Gao F, Strahler AH, Lucht W, Li X, Tsang T, Strugnell NC, Zhang X, Jin Y, Muller JP, Lewis P, Barnsley M, Hobson P, Disney M, Roberts G, Dunderdale M, Doll C, d’Entremont R, Hu B, Liang S, Privette JL (2002) First operational BRDF, albedo nadir reflectance products from MODIS. Remote Sens Environ 83:135–148CrossRefGoogle Scholar
  32. Scheffer M, Carpenter S, Foley JA, Folke C, Walker B (2001) Catastrophic shifts in ecosystems. Nature 413:591–596CrossRefGoogle Scholar
  33. Schimel D (2006) Climate change and crop yields: beyond Cassandra. Nature 312:1889–1890Google Scholar
  34. Schmidhuber J, Tubiello FN (2007) Global food security under climate change. Proc Natl Acad Sci U S A 104:19703–19708CrossRefGoogle Scholar
  35. Sen A (1983) Poverty and famines: an essay on entitlement and deprivation. Oxford University Press, OxfordGoogle Scholar
  36. Strand H, Carlsen J, Gleditsch NP, Hegre H, Ormhaug C, Wilhelmsen L (2005) Armed Conflict Dataset Codebook. International Peace Research Institute, OsloGoogle Scholar
  37. Theisen OM (2006) Other pathways to conflict? Environmental scarcities and domestic conflict In Paper presented to the 47th Annual Convention of the International Studies Association, San Diego, CA, pp. 22–25 March 2006Google Scholar
  38. UNDP (2007) Human Development Report 2007/2008. United Nation Development ProgrammeGoogle Scholar
  39. UNEP (1992) World Atlas of Desertification, UNEP/GEMS and GRID, Nairobi, KenyaGoogle Scholar
  40. UNEP (2007) Sudan Post-Conflict Environmental Assessment. United Nations Environment ProgrammeGoogle Scholar
  41. Young H, Osman AM, Aklilu Y, Dale R, Badri B, Fuddle AJA (2005) Darfur—livelihoods under Siege. Feinstein International Famine Center, Tufts University, Medford, MA, USAGoogle Scholar
  42. Zhang DD, Brecke P, Lee HF, He Y, Zhang J (2007) Global climate change, war, and population decline in recent human history. Proc Natl Acad Sci U S A 104:19214–19219CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Pedram Rowhani
    • 1
    • 2
    Email author
  • Olivier Degomme
    • 3
  • Debarati Guha-Sapir
    • 3
  • Eric F. Lambin
    • 1
  1. 1.Department of GeographyUniversity of LouvainLouvain-la-NeuveBelgium
  2. 2.Department of GeographyMcGill UniversityMontrealCanada
  3. 3.Center for Research on the Epidemiology of DisastersUniversity of LouvainBrusselsBelgium

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