This issue on “Ecologies” explores urban design across Texas and focuses on the increasing importance of green infrastructure for our cities. With the rehabilitation of the San Antonio River, the state now has the longest linear park in the nation. Dallas is also leading urban design trends with its progressive parks plan — Klyde Warren Park is just one example of the good work being done. Houston and Austin are also both relying on green infrastructure to create valuable public spaces. Other important urban design initiatives featured include mixed-use development in downtown Austin, El Paso’s first net-zero senior housing project, and the push for San Antonio’s missions to be added to the World Heritage List.