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TopClimate Change And Collective Violence
The impact of climate change can be seen as a significant factor in the intensification of social instability. Weather-related events such as the raise in temperature can be considered as a causal effect of conflict occurrence (Ide & Sheffran, 2014; Burke, Hsiang & Miguel, 2014). According to experts in the Intergovernmental Panel on Climate Change (Marengo, et.al., 2014) recent studies suggest that heavy rains is increasing and the seasonal extremes from 2005 to 2012 were caused by climate variability. However, the studies on the effect of a 1ºC temperature increase and other weather anomalies are mainly focused on short to medium-term violent outcomes; in that sense, there are no overarching theoretical frameworks that verify the environment-conflict relationship as a causal phenomenon but mostly as one possible pathway to understanding heat and aggression (Theisen, 2017).
The post-2014 scientific discussion in climate and security focuses on an indirect implication of climate on security to the extent that climate-driven stresses on natural resources can degrade a nation´s capacity to meet the population´s demands (Werrell & Femia, 2019). There are two possible ways of viewing how the climate affects the likelihood of conflict: a direct material and psychological effect by elevating the levels of aggressiveness that increases hostility and violence, and an indirect socioeconomic factor that leads to conflict by reducing the economic outputs and migration (Koubi, 2019).
With emphasis in the socioeconomic perspective, the grievance or greed mechanisms are seen as relevant factors in the emergence of social conflicts for the control of natural resources (Le Billon, 2009; Humphreys, 2007; O`Lear & Tutten, 2013; Iden & Sheffran, 2014). Additionally, another empirical study suggests that the effect of rise in temperatures and rainfalls is a trigger in the emergence of violent outcomes in agricultural-based economies, highly dependable on few commodities and a prolonged political uncertainty (Burke/Hsiang/Miguel, 2014).