African has the world’s fastest rate of urbanisation. In 1960, only 20% of Africans lived in cities. By 2050, that number is projected to be 60%. On average, 50% of Africa’s urban population lives in slums where living conditions are poor and have been made worse by increasing floods and increased erosion in coastal cities. This coupled with forced migration from climate-affected rural areas, and the exploitation of rural ecosystems to meet increased food demands, have increased health risks for urban communities. How will cities transition to sustainable transport, housing, and energy systems that don’t turn up the heat? How will they be kept healthy?