The types of ecosystem services are complex and diverse. This study estimated four ecosystem services, their trade-offs, and their synergistic outcomes in 2010, 2015, and 2020 using the InVEST model. Globally, results showed that waterfront ecosystem services are high (low) in the north (south), and that high-value areas are mainly in Sweden and Finland in Europe; the Congo in Africa; Russia, Southwest China, and Indonesia in Asia; the Northwestern United States and Canada in North America, and northeastern Peru and northwestern Brazil in South America. Overall, ecosystem services changed little during 2010–2020. Additionally, a notable trade-off was found between water yield and habitat quality, and strong synergies were found between water yield and carbon storage and sequestration, water yield and sediment delivery ratio, carbon storage and sequestration and sediment delivery ratio, and carbon storage and habitat quality. The results of this study could help promote sustainable development of waterfronts globally.

The Chinese economy has shifted towards a stage of high-quality development, and promoting high-quality development of tourism is of great significance for its sustainable development. Based on the new development concept, using Geographic Information System (GIS) spatial analysis, Moran’s I Index, and the Geographically Weighted Regression (GWR) model, this paper analyzes the spatial–temporal evolution of tourism development in 31 provinces in China during 2010–2022. The findings are as follows: (1) the overall tourism development level of China from 2010 to 2022 was at a medium-low level, showing a spatial distribution pattern of “higher in southeast and lower in northwest”; (2) from the perspective of the Quality–Quantity relationship, the quality of tourism development in China has gradually improved, the regional gap between the east and the west and the internal gap among western regions/provinces have gradually expanded; and (3) tourism innovation and internationalization level are the main influencing factors of high-quality tourism development in China’s provinces, providing practical decision-making references for advancing the high-quality development of tourism.

With the rapid advancement of urbanization, “big city diseases” such as traffic congestion, environmental pollution, and land shortage have become increasingly notable. Specifically, transit-oriented development (TOD) has emerged as one possible solution to sustainable urban development and the key to promoting green transportation. Consequently, many cities and regions have embraced the concept of transit-oriented development. At present, the researches on the TOD built environment mainly focus on the cross-sectional analysis of the built environment. Although these researches reveal the impact of TOD mode on the built environment, it is difficult to determine the evolution of the built environment. Furthermore, the current research concentrated on the TOD model in Americas, Europe, and Asia, while there is little discussion on that in Africa. In view of this, this study analyses the evolution of the TOD Built Environment based on the built environment data of Addis Ababa, Ethiopia. This study verifies that the rail transit infrastructure with the TOD mode does have an impact on the built environment along the route, including the density and diversity of commercial, residential, medical, and educational facilities within the pedestrian range of the station.