Yes, it does but which in Sub-Saharan Africa? The paper by Hoekstra and Mekonnen in PNAS (Hoekstra, A. and Mekonnen, M.M. (2012) The water footprint of humanity. Proceedings of the National Academy of Sciences, Vol. 109, pp. 3232-3237.) may help though there may be better references with more detailed information of virtual water trade flows from Africa.
Yes, it does but which in Sub-Saharan Africa? The paper by Hoekstra and Mekonnen in PNAS (Hoekstra, A. and Mekonnen, M.M. (2012) The water footprint of humanity. Proceedings of the National Academy of Sciences, Vol. 109, pp. 3232-3237.) may help though there may be better references with more detailed information of virtual water trade flows from Africa.
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