For a very recent review of the topic, see...(pdf freely available on the Internet):
Cattaneo, C., Beine, M., Fröhlich, C.J., Kniveton, D., Martinez-Zarzoso, I., Mastrorillo, M., Millock, K., Piguet, E. and Schraven, B., 2019. Human migration in the era of climate change. Review of Environmental Economics and Policy, 13(2), pp.189-206.
The problematic of wisdom should be central to how policy-makers approach the topic...for an illustration of linkages between wisdom research and migration research, see also...
Article "International migration, cross-cultural interaction, and th...