Precautionary principle
The precautionary principle, a phrase coined circa 1988, is the ethical principle that if the consequences of an action, especially the use of technology, are unknown but are judged by some scientists to have a high risk of being negative from an ethical point of view, then it is better not to carry out the action rather than risk the uncertain, but possibly very negative, consequences. It is similar to one version of the Hippocratic oath, First of all, do no harm, or, Better do nothing than cause harm. Another way of describing it is that it favours inaction, at the risk of the negative consequences of doing nothing, over action, which risks negative consequences.
Overview
A major conceptual, and possibly legal, application of the principle is that it should shift the burden of proof in technology-related governmental or legal decision making- from: requiring proof of negative consequences in order to oppose an action
- to: requiring proof of absence of negative consequences in order to allow an action
Criticisms
Critics of the principle argue that it is impractical, since every implementation of a technology carries some risk of negative consequences. Proponents counter that the principle is not an absolute rule, it is a conceptual tool to clarify arguments. Someone in a debate regarding a proposal can say, I oppose this proposal on the grounds of the precautionary principle, without necessarily invoking the precautionary principle for other proposals. However, such selectivity in its use is in itself criticised, because it leaves open the possibility that it will only be used in the context of technologies that advocates of the principle typically oppose - such as nuclear fission or genetically modified organisms. Another standard criticism of the precautionary principle is that it is only applied to new technologies, not the existing technologies that the new techology might supersede. Proponents of the principle argue that this is a misapplication of the principle - existing as well as new technologies should be applied. It is however uncommon to use the precautionary principle as an argument for a new technology. The precautionary principle, as stated, does not take into accounts the potential benefits of a technology, which may be substantial. Thus, it assumes zero opportunity cost, or that there is no cost associated to doing nothing. This omission is particularly pointed out by proponents of the Proactionary Principle, who insist that such opportunity costs are quite real and should not be overlooked in a fair and balanced evaluation of any technology. Its use is often interpreted as protectionism (such as the case of beef fed with hormones, dealt by the World Trade Organisation), or as Luddism in the case of opposition to genetic engineering, nano technology, stem cell research and related therapy, or even development of wilderness areas, in the form of rationalization for eco-terrorism.Applying the Principle
An application of the principle is that the presence of significant systematic uncertainties, related to the actual state of scientific knowledge, should not postpone the adoption of effective and proportionate measures to prevent the risk. Strong and weak applications of the principle could be distinguished as follows.- A strong application is one in which the precautionary principle overrides all other decision making factors, for example as part of a national constitution which, in principle, excludes short-term public debate from having any input to the decision.
- A weak application is one in which wide public debate occurs about whether or not the precautionary principle is relevant for the decision, and in which costs and benefits of the anticipated preventive measures are considered by the group which makes the decision.
Application of the precautionary principle
The principle is not a juridical principle, as it can hardly provide regulations sanctioned by laws. It doesn't describe what actions to take, but seeks to trigger reactions in advance, before any irreversible damage occurs. Fields typically concerned by the precautionary principle are:- Persistent or acute pollution (asbestos...).
- Extinction of species.
- Introduction of new and potentially harmful products into the environment, threatening biodiversity (genetically modified organisms (GMO)).
- Threats to health safety, due to new diseases and techniques (AIDS transmitted through blood transfusion...)
- Food safety (Creutzfeldt-Jakob disease related to the mad cow disease, Bovine Spongiform Encephalopathy, genetically modified food...)
- High energy physics, where there is concern that upcoming particle colliders might create mini black holes or other exotic objects that might destroy the earth.
- Other new biosafety issues (artificial life forms, new molecules...)
External links
- Appell, David. "The New Uncertainty Principle". Scientific American. Jan 2001.
- What is . . . the Precautionary Principle?- Times online
- Mismanaging risk - Adam Smith Institute Blog
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