The 2015 edition of the annual Vienna Yearbook of Population Research is a special issue on differential demographic vulnerability to climate-related disasters. Many of the 16 articles are worth reading, but here are 2 of particular interest.

Accurate measurements of wealth are useful for developing more targeted and effective poverty reduction programs. Unfortunately, such metrics are few and far between, as data on economic livelihoods tends to be expensive to obtain, and once collected, is often unreliable.

A study published in PNAS highlights the unpredictability of the impacts of climate change on water resources by comparing detailed simulations in mountain areas of Chile and Nepal. Authors Silvan Ragettli, Walter W. Immerzeel, and Francesca Pellicciotti study the response of river flows to a significant decline in glacier areas in the Juncal catchment of Chile and the Langtang catchment of Nepal at higher spatiotemporal resolutions than any previous study.

Conflict is typically viewed as a failure of social and political systems and almost never as a method of transforming dysfunctional or fractured societies into cohesive units. However, in an analysis of the discourse around climate change and conflict in Local Environment, Melissa Nursey-Bray concludes that conflict is a sometimes-necessary step in a complicated process to create stable societies. Nursey-Bray separates the climate-conflict discourse into two baskets: climate change as a security risk and climate change as one of many factors that contribute to insecurity.

Overfishing by foreign fleets in West Africa is leading to devastating social and economic consequences. In a report from the Overseas Development Institute, an independent think tank based in London, researchers use satellite data to assess the scale of two kinds of illegal, unreported, and unregulated fishing: “reefers,” or large-scale commercial vessels receiving and freezing fish at sea and at port, and large refrigerated container ships that are registered in countries with less stringent enforcement regulations than that of the ship’s owners.

A working paper by Eoin Mcguire (Brown University) and Marshall Burke (Stanford University) examines the impact of food price increases on conflict in Africa. Under the hypothesis that negative income shocks contribute to the outbreak of conflict, the authors compare the effect of significant increases in food prices in communities that predominantly produce food to the effect in those that predominantly consume food. In food producing areas, conflict driven by food surplus allocations increased but conflict driven by territorial factors decreased.

Gains in food production and increased awareness of global food security are threatened by looming losses due to climate change, according to a study published in The Lancet. Marco Springmann et al. calculate that climate change will lead to a 3.2 percent reduction in global food availability per person by 2050, driven by changes in weather patterns, increasing frequency of extreme weather, and potential social disruptions to food production like disease and conflict.

Climate change is expected to affect rural to urban migration and Omar O. Chisari and Sebastian Miller, in a recently released working paper by the Inter-American Development Bank, analyze the various policy options available in two cases: domestic migration to São Paulo, and international migration from Bolivia and Paraguay to Argentina. Migration into cities will impact climate change mitigation strategies.