... protecting public health, the environment and the future of our children Edited by:Marco Martuzzi and Joel A. Tickner2Debate about the precautionary principle is partly a response to the ... function not only of the level of risk and the strength of evidence and uncertainty, but also of the magnitude, reversibility and distribution of the risk, the availability of opportunities ... assembled during the preparation of the Fourth Ministerial Conference on Environment and Health, Budapest, Hungary, 23–25 June 2004. Discussion and negotiation on the theme of the precautionary...