Migration and Climate Change (IOM, 2008)

Predicting future flows of climate migrants is complex; stymied by a lack of baseline data, distorted by population growth and reliant on the evolution of climate change as well as the quantity of future emissions. Nonetheless this paper sets out three broad scenarios, based on differing emissions forecasts, for what we might expect. These range from the best case scenario where serious emissions reduction takes place and a “Marshall Plan” for adaptation is put in place, to the “business as usual” scenario where the large-scale migration foreseen by the most gloomy analysis comes true, or is exceeded.