First autonomous ship prepares for maiden voyage from UK / The seaweed-eating sheep helping tackle climate change / Video game developers cash in on Africa's booming market / Ugandan children back to school after nearly 2-year COVID closure / Street art transforms Quinta Do Mocho District in Lisbon / Waste not, want not: UK consumers use apps to fight food waste / Ethiopian girls take on gender stereotypes at the skatepark / Africa to press climate finance demands at COP26 / Tourism's gifts and woes for Santa and Sami homeland / Untapped potential: / The Central African Republic develops its agricultural sector / Going home: Europe starts slow return of looted African art / Torfaera, the motor sport captivating Iceland / New Zealand outlines plans to tax livestock burps and farts / Poverty and activism combine in Chad street theater / Rwandan company transforms gas from "killer lake" into electricity / Historic German island is nursery for North Sea seals（全16章）