Big issues deserve bold responses: Population and climate change in the Sahel

Parts  of  Africa  have  the  most  rapid  population growth in the world. Recent studies by climatologists  suggest  that,  in  coming  decades, ecologically vulnerable areas of Africa, including the Sahel will be exposed to the harshest adverse effects of global warming. The threat hanging over parts of sub-Saharan Africa is extreme. Fortunately,  there are evidence-based achievable policies which can greatly ameliorate what would otherwise  be  a  slowly  unfolding  catastrophe  of stunning magnitude. But to succeed such measures must be taken immediately and on a large scale.