Eco-efficiency is a management approach endorsed at the 1992 Rio Earth Summit that aims to deliver goods and services that satisfy human needs while reducing environmental impacts throughout a product's lifecycle. The document discusses eco-efficiency in agriculture, noting that while initially seen as a buzzword, it can be substantiated with evidence of economic, social, and environmental impacts from leading organizations. Specific examples are given of how CIAT commodities like rice, cassava, beans, and forages can improve productivity and reduce environmental impacts. The challenges of comprehensively measuring the benefits and impacts of eco-efficiency across physical scales are also addressed.