Decomposing sand mining complexities to chart ocean sustainability narratives and pathways in the coastal zones of Africa

Abstract

Coastal zones/states of Africa are some of the leading sand-mining and exporting spots globally, a conduit for lucrative socioeconomic transformation. Unfortunately, in Africa, as with most emerging economies, sand mining benefits have not yielded comprehensive socioecological benefits. Rather, sand mining and trade have spiraled into negative externalities that cataclysmically scupper socioecological systems and ocean sustainability targets. The lack of coherent sand mining governance mechanisms and increasing natural resource contestations, proliferated by bumper global sand demand, have further created dire sustainability indicators/ramifications. The externalities have explosive negative effects on coastal and marine ecosystems that sustain livelihoods. These have spilled into unsustainable socioecological outcomes,cremating the avenues for realizing Agenda 2063 of Africa's Ocean Decade and sustainable actions, necessitating urgent redress. This study digs deeper into the literature on sand mining in Africa to kickstart new epochs for sustainable sand mining in Africa that are replicable. A systematic literature review of 2514 peer-reviewed articles and 15 grey literature, including policy documents and reports on sand mining, were explored and analyzed using a bibliometric analysis technique. A bibliometric analysis entailed the uncovering of three key issues (i) sand mining research and policy trends/directions in Africa, including their complexity in tandem with the sustainability trilogy (ii) ramifications of the current sand mining landscape to/on ocean sustainability pillars (social, economic, institutional, scientific &environmental) and (iii) thematic mapping/analysis to highlight the current governance mechanisms (including sustainability issues/gaps therein). Findings revealed that Africa's coastal states are some of the leading sand exporters but lose most of their revenue by reimporting sand from middle or high-income states. Research on sand mining has receded. If it exists, it is led by a few countries and western (developed/richer) institutions/scholars. Increasing sand mining is associated with increase in socioecological vulnerabilities. Africa's coastal regions experiencing unsustainable sand mining are losing critical natural and social livelihood capitals. Governance mechanisms are unsustainable. Few powerful actors (including an emerging network of African oligarchs and foreign companies/individuals), operate or manage the sand-mining value chains. There is limited understanding of the environmental, social, and governance nexus and its relationship to local and global development targets. To chart/regurgitate sustainable narratives for sustainable sand mining, a new pathway called the SSMAP (Sustainable Sand Mining Action Pathway) that has five key interrelated steps has been developed. Localizing the SSMAP and incorporating emerging co-governance pathways in micro-settings could help identify leverage points for collaborative and voluntary engagements/governance on sand mining. Scaling up the SSMAP (micro to macro levels) could help build evidence-based inventories and transformative options to co-design coherent transnational governance mechanisms. Such mechanisms could bolster the monitoring of sand mining, legitimize sustainable sand mining operations and value chains, and lay the foundations for better coastal socioecological livelihood and development indicators.