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The analysis examines how the expansion of built-up areas at the expense of natural heat sinks like green spaces and water bodies increases urban heat risks in major cities across the Critical 9 countries. Using Copernicus Land Monitoring Service data and the IPCC's SSP1-1.9 scenario, the report details specific land-use losses in cities such as Shanghai, Karachi, and Dhaka, linking these changes to increased vulnerability to dangerous heat days (above 35°C) and rising energy demands for active cooling.

The report examines how agricultural expansion and urban development in the Chiquitano dry forest region of Bolivia are altering water resources. It highlights the proliferation of 'atajados' (artificial ponds) and groundwater wells, noting that these decentralized systems are often unregulated and not captured in current hydrological models. The authors argue that these changes reduce deep infiltration and base flow, potentially threatening downstream ecosystems and water users, drawing a parallel to similar unregulated water diversions in Northern California.