By Donald L Sparks, Published by Routledge FocusIn Southern Africa’s Blue Economy, Donald L. Sparks provides a concise study of the constraints and opportunities that the blue economy offers for southern Africa and the role that the South African Development Community (SADC) could play in promoting the sustainable use of its oceans and coastal resources.A key problem is that the world’s coastal and marine areas have been treated as limitless resources and dumping grounds. This has led to degraded coastal habitats, marine pollution, climate change, and overfishing. Additional challenges include rising ocean temperatures and acidification, which threaten fish stocks and…