Crisis and Climate Change Driving Unprecedented Migration

Climate change is now adding new layers of complexity to the nexus between migration and the environment. Coastal populations are at particular risk as a global rise in temperature of between 1.1 and 3.1 degrees C would increase the mean sea level by 0.36 to 0.73 meters by 2100, adversely impacting low-lying areas with submergence, flooding, erosion, and saltwater intrusion, according to the UN Environment Programme (UNEP). But even before such catastrophes strike, the 660 to 820 million people who depend on a fishing livelihood – more so subsistence-based traditional fis