Does it make sense to say that one should not, or ought not, take pleasure in certain objects or events within the natural environment? Cheryl Foster explores ethical constraints on aesthetic activity and appreciation.

Diane Saxe argues that a stronger “fiduciary” duty is required where corporations take risks with the environment and that economic activities must move from open to closed (sustainable) systems.

James Sterba argues that laying out the most morally defensible versions of an anthropological environmental ethics and nonanthropocentric ethics would lead us to accept the same principles of environmental justice.

Snorre Kverndok uses conventional justice principles to evaluate alternative allocation rules for tradeable CO2 permits, recommending a distribution proportional to population.