Climate Change May Fan The Flames Of War And Make Violent Crime More Common

Rising temperatures mean less resources, which means more conflict. Here, a Sudanese rebel fighter watches a village burn in the night. Scott Nelson/Getty Images

Robin Andrews 08 Sep 2016, 19:43

The immediate thoughts most people have when “climate change” comes to mind – assuming they aren’t a denialist bathing in conspiracy theories – are ones of environmental destruction, sea-level rise, and stronger hurricanes. However, the social and economic impacts of the wide-reaching man-made phenomenon are rarely thought of.

Studies have been conducted on the socio-economic impact of climate change before, but a new review published in Science hopes to highlight the damage we our doing to our own species, and not just every other one. Analyzing many pre-existing, cutting-edge studies, the team from the University of California, Berkeley, conclude that even with our technological prowess and ingenuity, famine, economic collapse, and war will hang like a specter over our heads long into the future.

“During the modern warm period, hotter conditions increase collective violence in settings as diverse as insurgency in India, land invasions in Brazil, and civil war intensity in Somalia,” the authors write. “This relationship [between temperature and conflict incidences] is linear.”

Agriculture, for one, is in dire straights. Although new crop breeds appear all the time, they simply are not able to keep up with the pace of temperature change. As a result, maize crop yields in the US will, by 2100, have dropped by up to 82 percent. Globally, between 1981 and 2002, trends in temperature have cost the world $5 billion a year in lost crop yields.

Crops will fail faster in the future. sorayut/Shutterstock

Speaking of the economy, it’s not looking good. High temperatures disrupt low-skill work like manufacturing and agriculture. As these industries drive much of the higher economy, a detriment to them is a detriment to us all. In addition, more powerful natural disasters directly rob nations of their cash.

At present, this is causing the global economic growth rate to shrink by nearly 0.3 percent per year. By 2100, the global GDP will have shrunk by 23 percent of its present value. One study suggests the US alone will lose $2 trillion by 2030.

Perhaps most shocking is how climate change will affect warfare. Areas that lack basic food and water resources, along with having distinctly uneven distributions of wealth, tend to exhibit a higher propensity towards conflict. This review notes that between 1981 and 2006, warfare in Sub-Saharan Africa has increased by more than 11 percent, and by 2030, annual incidence of war will have jumped up 54 percent.

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