The precautionary principle and the risk communication : a study of science and technology ethics

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(1) The "precautionary principle" was introduced as the decision making model in order to cope with uncertain risks brought about by the development of technology. The principle, however, does not include a criterion that specifies the level of risk at which we should take preventive measures. Therefore, the precautionary principle requires a supplementary decision-making model for consensus building about uncertain risks.(2) The uncertainty of the risks brought about by technology was analyzed from the standpoint of risk communication in order to clarify the nature of the uncertain risks.