The document discusses how destinations around the world are leveraging sustainability for success. It outlines 5 megatrends shaping the tourism industry, including climate breakdown, ecocide, demographic shifts, social changes, and digitization. It also identifies 4 building blocks for destinations to develop sustainability strategies, such as taking a leadership role, integrating sustainability into core business strategies, collaborating widely, and becoming sustainability certification experts. Finally, it provides examples of tactics cities are using, including setting science-based goals, engaging stakeholders, promoting local food, and benchmarking impacts. The overall message is that sustainability has become critical to destinations' competitiveness and future success.