ABSTRACT
The evolution of an ethical vision of the built/natural environment poses new, hard questions and affects the planner's action, increasing the uncertainty of action and of evaluation. When dealing with environmental problems in planning, is it possible to adopt standard behaviours? The ethical and moral aspect in evaluation disciplines is traditionally represented in the issues which are the domain of public interest. Analyzing the interplay among social, economical and environmental dimensions in planning for natural parks, an immediate and simple question arises: How can an ethically correct preferences structure be built? When dealing with ethical and moral dilemmas, the need for explorative decision-making processes is evident. An ethical and moral alerting system can have a dual approach to supplying support for the planning process: alerting planners to the ethical and moral dimensions of the actions that are considered so that mistakes can be avoided; alerting planners to actions which are of a dubious ethical and moral nature.
