Paul B. Thompson

A large part of environmental policy is based upon scientific studies ofthe likely health, safety, and ecological consequences of human actions and practices. These studies, however, are frequently vulnerable to epistemological and methodological criticisms which challenge their validity. Epistemological criticisms can be used in ethical and political philosophy arguments to challenge the applicability of scientific knowledge to environmental policy, and, in turn, to challenge the democratic basis of specific environmental policies themselves. Uncertainty arguments thus draw upon philosophy of science, epistemology, ethics, and political philosophy to establish conclusions of practical relevance to environmental quality. A theory of how and when uncertainty arguments ought to be given credence in environmental decision making requires an account of how scientific research ought to be integrated into environmental policy generally, plus an account of how public environmental policy is to be set in a democracy.

Nanotechnologies that have been linked to the possibility of enhancing cognitive capabilities of human beings might also be deployed to reduce or eliminate such capabilities in non-human vertebrate animals. A surprisingly large literature on the ethics of such disenhancement has been developed in response to the suggestion that it would be an ethically defensible response to animal suffering both in medical experimentation and in industrial livestock production. However, review of this literature illustrates the difficulty of formulating a coherent ethical debate. Well structured arguments for disenhancement can be made on the basis of mainstream views on the basis of ethical obligations to animals, but these arguments have not been persuasive against the moral intuition that disenhancements are unethical. At the same time, attempts to ground these intuitions in a coherent philosophical doctrine have been plagued by logical fallacies and question begging assertions. As such, the debate over animal disenhancement forecasts an enduring conundrum with respect to the core question of transforming the nature of sentient beings, and this conundrum is logically independent of claims that relate either to the distinctive of human beings or to issues deriving from the emphasis on enhancement

Consumer response to genetically altered foods has been mixed in the United States. While transgenic crops have entered the food supply with little comment, other foods, such as the bioengineered tomato, have caused considerable controversy. Objections to genetically engineered food are varied, ranging from the religious to the aesthetic. One need not endorse these concerns to conclude that food biotechnology violates procedural protections of consumer sovereignty and religious liberty. Consumer sovereignty, a principle especially valued in this country, requires that information be made available so each individual or group may make food choices based on their own values. And as yet, there is no policy provision for informing consumers about the degree to which food has been genetically engineered.

Risk communication poses a challenge to ordinary norms of truth-telling because it can easily mislead. Analyzing this challenge in terms of a systematic divergence between expertise and public attitudes fails to recognize how two specific features of the concept of risk play a role in managing daily affairs. First, evaluating risk always incorporates an estimate of the reliability of information. Since risk communication is an effort at providing information, audiences will naturally and appropriately incorporate their assessment of the reliability of the risk communicator into their assessment of the risk as such. Second, one conceptual and grammatical feature of the concept of risk is to categorize experience as non-routine and demanding further deliberation. That is, the whole point of calling something a risk can be to distinguish it from activities or phenomena that need no further attention. Risk communications that stress relative comparisons of measured probabilities and expected utilities can be inconsistent with both features of our concept of risk. At best they mislead; at worst they undermine our society’s capacity to cope with risk. While there are no simple answers to these two conundrums, technical experts should bear them in mind when communicating with the broader public.