This is the inaugural edition of the Ecological Threat Register (ETR), which covers 157 independent states and territories. The ETR is unique in that it combines measures of resilience with the most comprehensive ecological data available to shed light on the countries least likely to cope with extreme ecological shocks, now and into the future. Over one billion people live in 31 countries where the country’s resilience is unlikely to sufficiently withstand the impact of ecological events by 2050, contributing to mass population displacement. Sub-Saharan Africa, South Asia, the Middle East and North Africa are the regions facing the largest number of ecological threats.The Ecological Threat Register analyses risk from population growth, water stress, food insecurity, droughts, floods, cyclones, rising temperatures and sea levels. Over the next 30 years, the report finds that 141 countries are exposed to at least one ecological threat by 2050. The 19 countries with the highest number of threats have a combined population of 2.1 billion people, which is around 25 per cent of the world’s total population.

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