To determine the amount of environmental goods and services to provide or preserve, it is necessary to weigh society’s degree of preference for the environment. This value measure serves to inform the decision-making and policy-making process and there by justify the allocation of limited resources between competing uses. This paper provides an overview of economic valuation methods for environmental goods, with examples. Valuation methods include both demand and non-demand curve approaches, including the dose-response method, contigent valuation method and hedonic pricing.