Perhaps this is because the wider society gradually has awakened to the importance of the natural environment over approximately the same half-century as the lifespan of environmental psychology, including its fragility and vulnerability to human actions and its potential for enhancing human life. Over the same period, the ability of environmental psychology to contribute ideas and solutions to the design of the built environment has been realized. One gets the feeling that, perhaps more than in some other areas of psychology, environmental psychologists are driven by personal conviction to a cause.