An account of judgement is developed, which is used to show that delib
erative procedures can provide a substantially different input to envi
ronmental decision-making from that afforded by coat-benefit analysis
and, specifically, by the method of contingent valuation. It is argued
that environmental concern typically invokes values, which are in tur
n formed and expressed through the exercise of judgement - itself the
outcome of a deliberative rather than a calculative process. It is con
cluded that environmental concern is more effectively articulated thro
ugh deliberative procedures than through the method of cost-benefit an
alysis.