The resulting state of affairs will be deeply different from the present. The ideological change is mainly that of appreciating life quality rather than adhering to an increasingly higher standard of living. There will be a profound awareness of the difference between big and great. Those who subscribe to the foregoing points have an obligation directly or indirectly to participate in the attempt to implement the necessary changes. On Population The implications of deep ecology for the size of human populations follow from Naess' ultimate norms of ecocentrism and self-realization.
Sustainability is currently a term on many people's agendas.
For supporters of deep ecology, sustainability means sustainable for viable populations of non-human species indigenous to each bioregion. Carrying capacity for humans is considered within the historical situation of the bioregion due to human changes in the system. For example, when a bioregion that was forested with ancient forests has been clearcut and big mammals have been systematically exterminated, fewer humans would be able to dwell in the region for many years while the populations of big mammals and other threatened creatures begin to increase. A few humans may help the healing process with reforestation projects in the region. All people are called upon to reduce their rate of reproduction while other species have a chance to reproduce without pollution from humans or killing by humans who are dwelling in the region which is in the process of recovery.