This article takes a broad macroevolutionary approach to our changing relationship to Nature in the light of the teachings of the Bahá'í Faith. It suggests that humanity is in a process of evolving consciousness leading to the development of a new planetary culture based on spiritual principles. In an ecological sense, humanity has in many respects appeared to be a delinquent species running out of control. Within a larger vision of humanity's spiritual and social evolution, however, the present environmental crisis and the race's reaction to it can be seen as portending a momentous transformation. The process of evolving consciousness that can be discerned in emerging knowledge in physics, ecology, psychology, and other fields of science is leading to the ecosphere which gave it birth. After a brief overview of the current range of responses to environmental issues and the view of Nature on which they are based, this article will explore the basic attitudes to Nature contained within the Bahá'í writings. The second part of the article examines how the emergence of an ecologically sustainable social order is linked to basic principles of the Bahá'í faith. Implicit throughout is the Bahá'í view of the balance and cohesion of material and spiritual realities.