Part 1 Overview: environmental economics - a survey. Part 2 Valuing health: environmental health effects; valuing future risks to life; discounting and the evaluation of lifesaving programmes; preferences for life saving programmes - how the public discounts time and age; public choices between lifesaving programmes - how important are lives saved?; the effect of information on health risk valuations; the social costs of chronic heart and lung disease; measuring the benefits from reduced mortality. Part 3 Valuing urban amenities: inter-city wage differentials and the value of air quality; the value of urban amenities; on the choice of functional form for hedonic price functions; valuing product attributes using single market data - a comparison of hedonic and discrete choice approaches. Part 4 The political economy of environmental regulation: the determinants of pesticide regulation; pesticide regulation and the rule-making process; when is a life too costly to save? The evidence from US environmental regulations; paying for permanence - an economic analysis of EPA's cleanup decisions at superfund sites.