“As a consumer an individual expresses “personal or self-regarding wants and interests”; as a citizen she expresses her “judgements about what is right or good”. The mistake of market approaches to environmental problems is that they transform an issue that requires public deliberation by citizens into one to be resolved by consumer preferences. The market responds only to those preferences that can be articulated through acts of buying and selling. Hence the interests of the commercially inarticulate, both those who are contingently so (the poor) and those who are necessarily so (future generations and non-humans) cannot be adequately represented.”