Many people throughout the world take regular weather forecasts for granted. However, the majority of Africa’s 1.3 billion inhabitants have little early warning of what is to come. This may be both lethal and costly, with damage in the billions of dollars. The inaugural Africa Climate Summit kicks off Monday in Kenya, highlighting the region that would suffer the most from climate change while contributing the least to it. Significant investment in climate change adaptation in Africa, including improved forecasting, will be a top priority. The absence of data gathering that drives choices as critical as when to plant —...