Ecological design and environmental design are complementary approaches to creating sustainable and resilient built environments. Ecological design is a holistic approach to design that takes into account the natural environment, the built environment, and the social environment. It is based on the principles of sustainability, resilience, and regenerative design. Ecological design seeks to create a balance between human needs and the needs of the environment, and to create a harmonious relationship between the two. Environmental design, on the other hand, focuses on the physical environment. It is concerned with the design of the built environment, and how it interacts with the natural environment. Environmental design looks at how the built environment can be designed to reduce its environmental impact, while still providing the necessary services and amenities. It also looks at how the built environment can be designed to be more resilient to climate change and other environmental stresses. The two approaches are complementary because they both seek to create a sustainable and resilient built environment. Ecological design takes into account the needs of both the natural and built environment, while environmental design focuses on the physical environment. Together, they can create a built environment that is both sustainable and resilient, and that can provide the necessary services and amenities while minimizing its environmental impact.