Contemporary architects are under increasing pressure to offer a sustainable future. But with all the focus on green building there has been little investigation into the meaningful connections between architectural design, ecological systems, and environmentalism. A new generation of architects, landscape architects, designers, and engineers aims to recalibrate what humans do in the world according to how the world works as a biophysical system. Design in this sense is a larger concept having to do as much with politics and ethics as with aesthetics and technology. This recasting of the green movement for the twenty-first century transforms design into a positive agent balancing societal values with environmental needs.