This issue of PNAS (Vol. 123, No. 38; September 2026) prominently features a special section on the "Ecology of Segregation in Cities," presenting research and perspectives on how historic residential segregation, redlining, and gentrification structurally impact modern urban ecosystems, climate resilience, biodiversity data availability, and environmental health disparities.
Read MoreThis report distills decades of resilience science into nine clear, actionable Must-Knows that equip decision-makers across sectors and scales with a shared, science-based foundation to cope, adapt, and transform in the face of ongoing uncertainty.
Read MoreThis report examines both the promise and limits of using AI as a research method across eight key sustainability challenge areas, from interconnected climate shocks and Earth system complexity to urban resilience, freshwater security, and collective decision-making under planetary pressure.
Read MoreNature-based Solutions for Cities brings diverse perspectives from across the globe together to describe the state of the art in advancing nature-based solutions for cities.
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