The World Bank believes that sub-Saharan Africa will provide the largest contingent of "climate migrants", by 2050, if nothing is done to combat climate change at this time, according to a report published on 19 March 2018 by the global financial institution.
Of the 143 million people who are expected to flee a dizzing fall in agricultural production, a severe water shortage or a rise in sea level over the next four decades, some 86 million will be nationals of the countries of sub-Saharan Africa.
The authors of this report have quantified climate migrants, by 2050, to 40 million in South Asia and 17 million in Latin America.
"Every day, climate change becomes a stronger economic, social and existential threat," deplored Kristalina Georgieva, Executive Director of the World Bank. "We see this in cities facing unprecedented water crises, in coastal regions experiencing the wave of destructive storms, in agricultural areas that can no longer produce essential crops," she added.
The World Bank stresses, however, that the displacement of populations linked to climate change could be reduced by 80%, thanks to the reduction of greenhouse gas emissions, the integration of migration into development plans or investments to better understand the processes of internal climate migration.