Contents for this issue: Changing the meaning of place: a rebranding case study of Park Hill Flats, Sheffield Question and answer Global urbanisation Everybody's talking about... Overtourism River ecosystems: why do they matter? Geographical ideas Causality Centrepiece Worlds of wealth Measuring diversity of place: a case study of London The global e-waste trade Carbon update Greenhouse gases: monitoring for mitigation Water security across borders: two international case studies Geographical skills Using photos as evidence in your NEA: getting the picture right NEA ideas Changing places The big picture Can we tackle the ocean plastics problem?