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If one looks at history, there has often been sufficient science to justify precautionary actions to reduce or eliminate harm from hazardous agents, decades before effective regulatory actions were eventually taken.
Similarly, the histories of well-known technologies, such as X rays, fishing techniques, fossil fuels, and nuclear power, provide lessons for prudent actions on the potential hazards of emerging technologies, such as from nanotechnology, GMO food, radio-frequency from mobile phones, and the new generation of nuclear plants.
In this lecture, Dr David Gee analysed the societal barriers to getting knowledge into action. He also illustrated some ways and means by which science and precautionary measures could be designed and implemented, in order to shorten the time between the first plausible scientific evidence of harm and the first effective initiatives on reducing hazards and risks.