The growing interest in clean cooking,with its potential benefits for human health, environmentalprotection, and climate change, has prompted developmentspecialists to reconsider the quality and performance ofcook stoves. Governments, donors, and developmentorganizations want to ensure that the cook stoves theypromote meet standards that will yield the greatest possiblebenefits over time, when adopted and used properly.Households need to understand differences in cook stoveperformance if they are to select those that represent thebest value for money. In this context, the report presentsproblems of traditional cook stoves; benefits offuel-efficient cook stoves; potential benefits of advancedcombustion cook stoves; and can cook stove performance be measured?