UNCTAD (United Nations Conference on Trade and Development) has expressed concern in a report about the economic situation in sub-Saharan Africa. Despite a recovery of 4.5% expected for 2012 and an average of 5.8% per year between 2002 and 2008, the growth is not sustainable in the mid- and long-term in this region, according to specialists, who quote the phenomena of resources depletion and degradation of the ecosystem, and have called for acceleration in the future under the effect of...