Ethiopia’s mega dam has taken 14 years to build: what it means for the Nile’s 11 river states and why it’s so controversialJohn Mukum Mbaku
African cities can raise more money. Kenya and South Africa offer useful lessonsSarah Colenbrander and Ian Palmer 24 Oct 2018
Future 'ocean cities' need green engineering above and below the waterlineKatherine Dafforn, Ana Bugnot, Eliza Heery, Marian 26 Mar 2018