The Department of Landscape Architecture at the University of Pennsylvania Stuart Weitzman School of Design is recognized internationally for its innovative ecological approach to the design of landscapes, public works, public spaces, and infrastructures. Ecology addresses the rich and entangled web of everyday environmental relationships between living things—humans, plants, and animals—as well as the mineral world. The Department’s faculty and students continue to advance the landscape discipline through design research at multiple scales, from seeds to systems, from urban to rural, and from a multiplicity of positions. A diversity of ecological approaches to our planet’s many natures and cultures is necessary to address the ongoing climate crisis as we work toward both decarbonization and reparative social and environmental justice. Landscape architecture has the capacity to change the earth; we are world-builders equipped with design imagination.