Masaki Inui*, Daisuke Kato*, Hisashi Setta*, Satoru Tanabe*, Kenji Nagata*, Satoru Murakami* and Kentarou Morita*
* Graduate School of Environmental Science, The University of Shiga Prefecture
+ Correspondence should be addressed to Ryujiro Kondo:
(2500 hassaka-cho, Hikone, 522-8533)

Abstract
Compared to the emergence of complexity studies, current environmental science with its narrow subdivisions seems to have trouble in really solving problems.
In this context, a quasi-social role-playing experiment has been adopted as an approach to the problem of environmental hormones (endocrine disrupting chemicals) in an exercise by graduate students majoring in an environmental policy course. The play focuses on communication and debate to manage the comprehensive situation including identification of chemicals, their hazardous effects on reproductive health, the shortage of scientific research works and so on, without intention to simplify the situation.
The main issues of concern are: (1)related social instability, (2)the difficulty of policy making, (3)improved understanding of the citizens (4)hazard-risk relationships, and (5)the necessity of the role of a mediator. Based on these procedures, measurement of human body exposure to the hormones, complete chemical constituents dissemination in all goods, installation of a citizens information center, an approval system of environmental copy-writer registration, environmental book-keeping for hormones, the establishment of hormone insurance, the scouting of celebrities with environmentally familiar lifestyle, and build-up of "betweenmaids" rhizome will be proposed in this report, in order to advocate decision making by the citizens themselves.

Key words: policy making, citizen participation, endocrine disrupting chemicals, seminar of graduate school, role-playing