Accessible Requires Authentication Published by De Gruyter August 22, 2015

Climate and Conflict: Whence the Weather?

Erik Gartzke and Tobias Böhmelt

Abstract

Researchers have increasingly sought to identify the social repercussions of an evolving climate. Several influential studies claim that climate change is responsible for increases in conflict, while other research finds no such evidence. Relating human-caused changes in the climate to conflict poses a basic endogeneity problem, though: accepting that industrial activity is responsible for altering the climate implies that human agency is indirectly involved in the impact of the climate on conflict. Specifically, industrial activity is closely tied to climate change and to rising economic development, the latter generally being accepted as a determinant of reductions in conflict. In this letter, we discuss this endogeneity problem, outline possible shortcomings for empirical research if this problem is not addressed, and propose a research strategy that might eventually help to overcome it effectively.


Corresponding author: Erik Gartzke, Department of Political Science, University of California, San Diego, 9500 Gilman Drive/Office: 327 SSB, 0521, La Jolla, CA 92093-0521, USA, E-mail:

References

Bernauer, T., Böhmelt, T., Koubi, V., (2012), Environmental Changes and Violent Conflict, Environmental Research Letters, vol. 7, no. 015601, pp. 1–8. Search in Google Scholar

Blattman, C., Miguel, E., (2010), Civil War, Journal of Economic Literature, vol. 48, no. 1, pp. 3–57. Search in Google Scholar

Buhaug, H., (2010), Climate Not to Blame for African Civil Wars, Proceedings of the National Academy of Sciences, vol. 107, no. 38, pp. 16477–16482. Search in Google Scholar

Buhaug, H., (2015), Climate-Conflict Research: Some Reflections on the Way Forward, WIREs Climate Change, vol. 6, no. 3, pp. 269–275. Search in Google Scholar

Buhaug, H., Nordkvelle, J., Bernauer, T., Böhmelt, T., Brzoska, M., Busby, J.W., Ciccone, A., Fjelde, H., Gartzke, E., Gleditsch, N.P., Goldstone, J.A., Hegre, H., Holtermann, H., Link, J.S.A., Link, P.M., Lujala, P., O’Loughlin, J., Raleigh, C., Scheffran, J., Schilling, J., Smith, T.G., Theisen, O.M., Tol, R.S.J., Urdal, H., von Uexkull, N., (2014), One Effect to Rule Them All? A Comment on Quantifying the Influence of Climate on Human Conflict, Climatic Change, vol. 127, no. 3–4, pp. 391–397. Search in Google Scholar

Burke, M., Miguel, E., Satyanath, S., Dykema, J., Lobell, D., (2009), Warming Increases the Risk of Civil War in Africa, Proceedings of the National Academy of Sciences, vol. 106, no. 49, pp. 20670–20674. Search in Google Scholar

Burke, M., Hsiang, S.M., Miguel, E., (2015), Climate and Conflict, Annual Review of Economics, vol. 7, no. 1, pp. 577–617. Search in Google Scholar

Cederman, L.-E., Weidmann, N., Gleditsch, K.S., (2011), Horizontal Inequalities and Ethno-Nationalist Civil War: A Global Comparison, American Political Science Review, vol. 105, no. 3, pp. 478–495. Search in Google Scholar

Collier, P., Hoeffler, A., (2004), Greed and Grievance in Civil War, Oxford Economic Papers, vol. 56, no. 4, pp. 563–595. Search in Google Scholar

Couttenier, M., Soubeyran, R., (2014), Drought and Civil War in Sub-Saharan Africa, Economic Journal, vol. 124, no. 575, pp. 201–244. Search in Google Scholar

Fearon, J., Laitin, D., (2003), Ethnicity, Insurgency, and Civil War, American Political Science Review, vol. 97, no. 1, 75–90. Search in Google Scholar

Gleditsch, N.P., (2012), Whither the Weather? Climate Change and Conflict, Journal of Peace Research, vol. 49, no. 1, pp. 3–9. Search in Google Scholar

Greene, W., (2003), Econometric Analysis, Prentice Hall, Upper Saddle River, NJ. Search in Google Scholar

Hsiang, S.M., Meng, K.C., (2014), Reconciling Disagreement over Climate–Conflict results in Africa, Proceedings of the National Academy of Sciences, vol. 111, no. 6, 2100–2103. Search in Google Scholar

Hsiang, S.M., Burke, M., Miguel, E., (2013), Quantifying the Influence of Climate on Human Conflict, Science, vol. 341, no. 6151, pp. 1–7. Search in Google Scholar

IPCC, (2013), Climate Change 2013: The Physical Science Basis, Contribution of Working Group I to the Fifth IPCC Assessment Report. Available at: http://www.ipcc.ch/report/ar5/wg1/. Search in Google Scholar

Koubi, V., Böhmelt, T., (2014), Grievances, Economic Wealth, and Civil conflict. Journal of Peace Research, vol. 51, no. 1, pp. 19–33. Search in Google Scholar

Koubi, V., Bernauer, T., Kalbhenn, A., Spilker, G., (2012), Climate Variability, Economic Growth, and Civil Conflict, Journal of Peace Research, vol. 49, no. 1, pp. 113–127. Search in Google Scholar

Maddala, G.S., (1983), Limited-Dependent and Qualitative Variables in Econometrics, Cambridge University Press, Cambridge. Search in Google Scholar

McKee, T.B., Doesken, N.J., Kleist, J., (1993), The Relationship of Drought Frequency and Duration to Time Scales, Eighth Conference on Applied Climatology, American Meteorological Society, Jan 17–23, 1993, Anaheim, CA, pp. 179–186. Search in Google Scholar

Meierding, E. (2013), Climate Change and Conflict: Avoiding Small Talk about the Weather, International Studies Review, vol. 15, no. 2, pp. 185–203. Search in Google Scholar

Miguel, E., Satyanath, S., Sergenti, E., (2004), Economic Shocks and Civil Conflict: An Instrumental Variables Approach, Journal of Political Economy, vol. 112, no. 41, pp. 725–753. Search in Google Scholar

Nordås, R., Gleditsch, N.P., (2014), Climate Change and Conflict, Natural Resource Management and Policy, vol. 46, no. 1, pp. 21–38. Search in Google Scholar

Scheffran, J., Brzoska, M., Kominek, J., Link, P.M., Schilling, J., (2012a), Climate Change and Violent Conflict, Science, vol. 336, no. 6083, pp. 869–871. Search in Google Scholar

Scheffran, J., Brzoska, M., Kominek, J., Link, P.M., Schilling, J., (2012b), Disentangling the Climate-Conflict Nexus: Empirical and Theoretical Assessment of Vulnerabilities and Pathways, Review of European Studies, vol. 4, no. 5, pp. 1–13. Search in Google Scholar

Stern, N., (2006), The Economics of Climate Change: The Stern Review, Cambridge University Press, Cambridge. Search in Google Scholar

Theisen, O.M., Gleditsch, N.P., Buhaug, H., (2013), Is Climate Change a Driver of Armed Conflict?, Climatic Change, vol. 117, no. 3, pp. 613–625. Search in Google Scholar

Ward, M.D., Greenhill, B., Bakke, K., (2010), The Perils of Policy by p-value: Predicting Civil Conflicts, Journal of Peace Research, vol. 47, no. 4, pp. 363–375. Search in Google Scholar

Published Online: 2015-8-22
Published in Print: 2015-12-1

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