We must recognize that the goal of a cleaner environment will not be achieved by rhetoric or moral dedication alone. It will not be cheap or easy and the costs will have to be borne by each citizen, consumer and taxpayer. How clean is clean enough can only be answered in terms of how much we are willing to pay and how soon we seek success... It is simplistic to seek ecological perfection at the cost of bankrupting the very tax-paying enterprises which must pay for the social advances we seek.