We address two questions on the effects of climate change for social instability. First, do droughts and their associated environmental impacts affect support for the use of violence? Second, do local-level formal and informal institutions moderate support for violence when and where droughts worsen? To answer these questions, we conducted a national survey of 1,400 Kenyans in 2014. Respondents were asked about patterns of rainfall and the presence of rules regulating natural resource use and access. Survey data are joined to spatially disaggregated observed rainfall trends. The survey uses endorsement experiments to elicit honest responses about support for using violence. There is some evidence of a direct, though limited, link between observed drought and violent attitudes. Certain local-level natural resource use rules have moderating effects on support for violence where drought is reported and precipitation is less frequent. This conditional and contextual effect is an important modification of overly simplistic narratives of universal climate change effects.
AbuleE.SnymanH. A.SmitG. N.. 2007. “Rangeland Evaluation in the Middle Awash Valley of Ethiopia: I. Herbaceous Vegetation Cover.” Journal of Arid Environment70 (2): 253–71.
2.
AdidaC. L.FerreeK. R.PosnerD. N.RobinsonA. L.. 2016. “Who’s Asking? Interviewer Coethnicity Effects in African Survey Data.” Comparative Political Studies49 (12): 1630–60.
3.
AgnewJ.1987. Place and Politics: The Geographical Mediation of State and Society. Winchester, MA: Allen and Unwin.
4.
AuffhammerM.HsiangS.SchlenkerW.SobelA.. 2015. “Global Climate Models: A User Guide for Economists.” Review of Environmental Economics and Policy7 (2): 181–98.
5.
BaybeckB.McClurgS. D.. 2005. “What Do They Know and How Do They Know It? An Examination of Citizen Awareness of Context.” American Politics Research33 (4): 492–520.
6.
BellowsJ.MiguelE.. 2009. “War and Local Collective Action in Sierra Leone.” Journal of Public Economics93 (11–12): 1144–57.
7.
BlairG.FairC. C.MalhotraN.ShapiroJ.. 2013. “Poverty and Support for Militant Politics: Evidence from Pakistan.” American Journal of Political Science57 (1): 30–48.
8.
BlairG.ImaiK.LyallJ.. 2014. “Comparing and Combining List and Endorsement Experiments: Evidence from Afghanistan.” American Journal of Political Science58 (4):1043–63.
9.
BogaleA.KorfB.. 2008. “To Share or Not to Share? (Non-)violence, Scarcity and Resource Access in Somali Region, Ethiopia.” Journal of Development Studies43 (4): 743–65.
10.
BöhmeltT.BernauerT.BuhaugH.GleditschN. P.TribaldosT.WischnathG.. 2014. “Demand, Supply, and Restraint: Determinants of Domestic Water Conflict and Cooperation.” Global Environmental Change29:337–48.
11.
BolligM.1993. “Intra- and Interethnic Conflict in Northwest Kenya.” Anthropos88 (1/3): 176–84.
12.
BuhaugH.2015. “Climate-conflict Research: Some Reflections on the Way Forward.” WIREs Climate Change6 (3): 269–75.
13.
BuhaugH.NordkvelleJ.BernauerT.BöhmeltT.BrzoskaM.BusbyJ. W.CicconeA.FjeldeH.GartzkeE.GleditschN. P.GoldstoneJ. A.HegreH.HoltermannH.KoubiV.LinkJ. S. A.LinkP. M.LujalaP.O’LoughlinJ.RaleighC.ScheffranJ.SchillingJ.SmithT. G.TheisenO. M.TolR. S. J.UrdalH.von UexkullN.. 2014. “One Effect to Rule Them All? A Comment on Climate and Conflict.” Climatic Change127 (3–4): 391–97.
14.
BurkeM. B.MiguelE.SatyanathS.DykemaJ. A.LobellD. B.. 2009. “Warming Increases the Risk of Civil War in Africa.” Proceedings of the National Academy of Sciences107 (38): 16477–82.
15.
ConleyT. G.1999. “GMM Estimation with Cross Sectional Dependence.” Journal of Econometrics92:1–45.
16.
De JuanA.2015. “Long-term Environmental Change and Geographical Patterns of Violence in Darfur, 2003–2005.” Political Geography45:22–33.
17.
DellM.JonesB. F.OlkenB. A.. 2014. “What Do We Learn from the Weather? The New Climate-Economy Literature.” Journal of Economic Literature52 (3): 740–98.
18.
DetgesA.2014. “Close-up on Renewable Resources and Armed Conflict: The Spatial Logic of Pastoralist Violence in Northern Kenya.” Political Geography42:57–65.
19.
DinarS.KatzD.De StefanoL.BlankespoorB.. 2015. “Climate Change, Conflict, and Cooperation: Global Analysis of the Effectiveness of International River Treaties in Addressing Water Variability.” Political Geography45:55–66.
20.
Food Security and Nutrition Analysis Unit (FSNAU). 2011. “Food Security and Nutrition Analysis: Post Deyr 2010/11.” Technical Series Report VI. 36, Nairobi, Kenya.
FinkelS.HorowitzJ.Rojo-MendozaR. T.. 2012. “Civic Education and Democratic Backsliding in the Wake of Kenya’s Post-2007 Election Violence.” Journal of Politics74 (1): 52–65.
23.
FjeldeH.von UexkullN.. 2012. “Climate Triggers: Rainfall Anomalies, Vulnerability and Communal Conflicts in Sub-Saharan Africa.” Political Geography31:444–53.
24.
HegreH.BuhaugH.CalvinK. V.NordkvelleJ.WaldhoffS. T.GilmoreE.. 2016. “Forecasting Civil Conflict along the Shared Socioeconomic Pathways.” Environmental Research Letters11:05002.
25.
HsiangS.2010. “Temperature and Cyclones Strongly Associated with Economic Production in the Caribbean and Central America.” Proceedings of the National Academy of Sciences107 (35): 15367–72.
26.
HsiangS.BurkeM.MiguelE.. 2013. “Quantifying the Influence of Climate on Human Conflict.” Science341 (6151): 1212.
27.
HsiangS.MengK.. 2014. “Reconciling Disagreement Over Climate-Conflict Results in Africa.” Proceedings of the National Academy of Sciences111 (6): 2100–03.
28.
HsiangS.MengK.CaneM.. 2011. “Civil Conflicts Are Associated with the Global Climate.” Nature476:438–41.
29.
IdeT.SchillingJ.LinkJ. S. A.ScheffranJ.NgaruiyaG.WeinzierlT.. 2014. “On Exposure, Vulnerability and Violence: Spatial Distribution of Risk Factors for Climate Change and Violent Conflict Across Kenya.” Global Environmental Change43:68–81.
30.
KaimbaG. K.NjehiaB. K.GuliyeA. Y.. 2011. “Effects of Cattle Rustling and Household Characteristics on Migration Decisions and Herd Size amongst Pastoralists in Baringo District, Kenya.” Pastoralism: Research, Policy and Practice1:1–16.
31.
KassahunA.SnymanH. A.SmitG. N.. 2008. “Impact of Rangeland Degradation on the Pastoral Production Systems, Livelihoods and Perceptions of the Somali Pastoralists in Eastern Ethiopia.” Journal of Arid Environments72 (1): 1265–81.
32.
LandisS. T.2014. “Temperature Seasonality and Violent Conflict: The Inconsistencies of a Warming Planet.” Journal of Peace Research51 (5): 603–18.
33.
LecoutereE.D’ExelleB.Van CampenhoutB.. 2010. “Who Engages in Water Scarcity Conflicts? A Field Experiment with Irrigators in Semi-arid Africa.” MICROCON Research Working Paper 31. Accessed February 12, 2017. https://ideas.repec.org/p/mcn/rwpapr/31.html.
34.
LinkeA. M.O’LoughlinJ.. 2015. “Reconceptualizing, Measuring, and Evaluating Distance and Context in the Study of Conflicts: Using Survey Data from the North Caucasus of Russia.” International Studies Review17 (1): 1–19.
35.
LinkeA. M.O’LoughlinJ.McCabeT.TirJ.WitmerF.. 2015. “Rainfall Variability and Violence in Rural Kenya: Investigating the Effects of Drought and the Role of Local Institutions with Survey Data.” Global Environmental Change34:35–47.
36.
LinkeA. M.SchutteS.BuhaugH.. 2015. “Population Attitudes and the Diffusion of Political Violence in Sub-Saharan Africa.” International Studies Review17 (1): 107–25.
37.
LinkeA. M.WitmerF.HollandE.O’LoughlinJ.. 2017. “Mountainous Terrain and Civil Wars: Geospatial Analysis of Conflict Dynamics in the Post-Soviet Caucasus.” Annals of the American Association of Geographers107 (2): 520–535.
38.
LivingstoneD.2015. “The Climate of War: Violence, Warfare, and Climate Reductionism.” WIREs Climate Change6 (5): 437–44.
39.
LyallJ.BlairG.ImaiK.. 2013. “Explaining Support for Combatants During Wartime: A Survey Experiment in Afghanistan.” American Political Science Review107 (4): 679–705.
40.
MaidmentR. I.GrimesD.AllanR.TarnavskyE.StringerM.HewisonT.RoebelingR.BlackE.. 2014. “The 30 Year TAMSAT African Rainfall Climatology and Time Series (TARCAT) Data Set.” Journal of Geophysical Research: Atmospheres119: 10619–44.
41.
MaystadtJ.-F.CalderoneM.YouL.. 2015. “Local Warming and Violent Conflict in North and South Sudan.” Journal of Economic Geography15 (3): 1–23.
42.
MaystadtJ.-F.EckerO.. 2014. “Extreme Weather and Civil War: Does Drought Fuel Conflict in Somalia Through Livestock Price Shocks?” American Journal of Agricultural Economics96 (4): 1157–82.
McCabeJ. T.1990. “Success and Failure: The Breakdown of Traditional Drought Coping Institutions Among the Pastoral Turkana of Kenya.” Journal of Asian and African Studies25 (3-4): 146–60.
45.
McCabeJ. T.2004. Cattle Bring Us to Our Enemies. Ann Arbor: University of Michigan Press.
46.
NgaruiyaW.ScheffranJ.. 2016. “Actors and Networks in Resource Conflict Resolution under Climate Change in Rural Kenya.”Earth System Dynamics7441–52
47.
O’LoughlinJ.LinkeA. M.WitmerF.. 2014a. “Modeling and Data Choices Sway Conclusions About Climate-Conflict Links.” Proceedings of the National Academy of Sciences111 (6): 2054–55.
48.
O’LoughlinJ.LinkeA. M.WitmerF.. 2014b. “The Effects of Temperature and Precipitation Variability on the Risk of Violence in Sub-Saharan Africa, 1980-2012.” Proceedings of the National Academy of Sciences111 (47): 16712–17.
49.
O’LoughlinJ.WitmerF.LinkeA. M.LaingA.GettelmanA.DudhiaJ.. 2012. “Climate Variability and Conflict Risk in East Africa, 1990–2009.” Proceedings of the National Academy of Sciences109 (45): 18344–49.
50.
OstromE., 1990. Governing the Commons: The Evolution of Institutions for Collective Action. Cambridge, UK: Cambridge University Press.
51.
OyefusiA.2008. “Oil and the Probability of Rebel Participation among Youths in the Niger Delta of Nigeria.” Journal of Peace Research45 (4): 539–55.
52.
PricopeN. G.HusakG.Lopez-CarrD.FunkF.MichaelsenJ.. 2013. “The Climate-Population Nexus in the East African Horn: Emerging Degradation Trends in Rangeland and Pastoral Livelihood Zones.” Global Environmental Change23:1525–41.
53.
RaleighC.KnivetonD.. 2012. “Come Rain or Shine: An Analysis of Conflict and Climate Variability in East Africa.” Journal of Peace Research49 (1): 51–64.
54.
RaleighC.LinkeA. M.HegreH.KarlesonJ.. 2010. “Introducing ACLED: An Armed Conflict Location and Event Dataset.” Journal of Peace Research47 (5): 651–60.
SaleyhanI.HendrixC.. 2014. “Climate Shocks and Political Violence.” Global Environmental Change28:239–50.
57.
SchillingJ.OpiyoF.ScheffranJ.. 2012. “Raiding Pastoral Livelihoods: Motives and Effects of Violence Conflict in North-western Kenya.” Pastoralism: Research, Policy and Practice2 (1): 2–25.
58.
SchleussnerC.-F.DongesJ. F.DonnerR. V.SchellnhuberH. J.. 2016. “Armed-conflict Risks Enhanced by Climate-related Disasters in Ethnically Fractionalized Countries.” Proceedings of the National Academy of Sciences113 (33): 9216–11.
59.
SmithT.2014. “Feeding Unrest: Disentangling the Causal Relationship between Food Price Shocks and Sociopolitical Conflict in Urban Africa.” Journal of Peace Research51 (6): 679–95.
60.
SolomonT. B.SnymanH. A.SmitG. N.. 2006. “Cattle-Rangeland Management Practices and Perceptions of Pastoralists towards Rangeland Degradation in the Borana Zone of Southern Ethiopia.” Journal of Environmental Management82 (4): 481–94.
61.
TirJ.AckermanJ. T.. 2009. “Politics of Formalized River Cooperation.” Journal of Peace Research46 (5): 623–40.
62.
TirJ.StinnettD. M.. 2011. “The Institutional Design of Riparian Treaties: The Role of River Issues.” Journal of Conflict Resolution55 (4): 606–31.
63.
TurnerM. D.2004. “Political Ecology and the Moral Dimensions of ‘Resource Conflicts’: The Case of Farmer-Herder Conflicts in the Sahel.” Political Geography23 (7): 863–89.
64.
van WeezelS. 2016. “Food Imports, International Prices, and Violence in Africa.” Oxford Economic Papers68 (3): 758–81.
65.
von UexkullN.CroicuM.FjeldeH.BuhaugH.. 2016. “Civil Conflict Sensitivity to Growing-season Drought.” Proceedings of the National Academy of Sciences113 (44): 12391–96.
66.
VoorsM. J.BulteE. H., 2014. “Conflict and the Evolution of Institutions: Unbundling Institutions at the Local Level in Burundi.” Journal of Peace Research51 (4): 455–69.
67.
VoorsM. J.NillesenE. E. M.VerwimpP.BulteE. H.LensinkR.Van SoestD. P.. 2012. “Violent Conflict and Behavior: A Field Experiment in Burundi.” American Economic Review102 (2): 941–64.
68.
WischnathG.BuhaugH.. 2014. “On Climate Variability and Civil War in Asia.” Climate Change122 (4): 709–21.
69.
WitmerF.LinkeA. M.O’LoughlinJ.GettelmanA.LaingA.. 2017. “Sub-national Violent Conflict Forecasts for Sub-Saharan Africa, 2015-2065, Using Climate-sensitive Models.” Journal of Peace Research54 (2): 175–92.
70.
WolfA.2007. “Shared Waters: Conflict and Cooperation.” Annual Review of Environmental Resources32 (3): 3.1-.29.
71.
WoodS.2004. “Stable and Efficient Multiple Smoothing Parameter Estimation for Generalized Additive Models.” Journal of the American Statistical Association99 (467): 673–86.
72.
YeelesA.2015. “Weathering Unrest: The Ecology of Urban Social Disturbances in Africa and Asia.” Journal of Peace Research52 (2): 158–70.
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