Problems with BSE-CJD stem not just from secrecy and communication failures, but also from a fundamental gap in the scientific approach to uncertain hazards. There are potentially serious implications for other uncertain hazards such as mobile phones, GM crops, power lines and fluoridation.
Evidence must pass an arbitrary but severe threshold of acceptance before a risk is established. Only then does formal risk assessment kick in. Meanwhile, evidence may accumulate to give reasonable grounds for suspicion, but this is often dismissed by scientific advisers, giving a platform for zealous political and commercial denial. The precautionary principle is too often eschewed, with notable but feeble exceptions such as the 1989 SBO (offal) ban and this year's Stewart Report on mobile phones for children.
A more objective and consistent approach to assessing uncertain hazards and to commensurate policy responses is possible. My draft scheme in 1995 met a negative response from official bodies. Meanwhile they struggle along with undefined terms, dismissal of plausible evidence, and inconsistent policy responses.
Yours, Mike O'Carroll
(Emeritus Professor at the University of Sunderland writing in a private
capacity)
e-mail: ocarroll@weights.demon.co.
Early this year the NfCG published the results of a survey among members, in which a clear majority was of the opinion that metrication should be continued and strengthened.
There has been recent evidence that certain groups are campaigning not only to forestall any further advances on that front, but who wish to abolish the existing laws. I have therefore created an Internet mailing list for anyone who wishes to join discussions on how to counteract these campaigns, to avoid an even greater muddle than we already have. If you have access to the Internet (apologies if you don't - my address and phone number are below) please e-mail me at chris@metric.org.uk.
Yours, Chris KEENAN( Individual Member)
UK Metrication Association: http://www.metric.org.uk/
116 Welch Road, CHELTENHAM, GL51 OEG 01242 525396 (h)
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