By Dr Flora Whitmarsh, Grantham Institute
The recently published 2015 Global Peace Index, produced by the Institute for Economics and Peace, said that although OECD countries became more peaceful in 2014, there has been substantial increase in annual war-related deaths since 2010, and there are now more refugees than at any time since the Second World War. It is currently difficult to give a definitive answer as to whether climate change could exacerbate these problems.
Climate change is likely to exacerbate a range of environmental problems including heat waves, water shortages, and extreme weather and flooding, but whether or not this will lead to increased rates of armed conflict is still the subject of research.