This book like the one on West Africa has chapters focusing on the unique challenges each country in Southern Africa will face due to climate change. The book is free to download in whole, or by chapter if you are only interested in a particular country or want to reduce your downloading time.
Check out the new IFPRI research monograph about climate change and agriculture in West Africa. I’ve been working off and on helping out with the project (mostly on modeling methodology and graphs) for the last year. It is a pretty interesting book with chapters focused on the countries of West Africa and the challenges they may face due to climate change. The book is freely accessible, and you can download chapters if you are only interested in a subset of the countries studied.