The UNSD Glossary of Environment Statistics which was published in 1997, is a quick reference tool for terms and definitions relevant to environmental data production and use. It covers the areas of environment statistics, environmental and sustainable development indicators, and environmental accounting. In selecting the terms, the focus has been on the requirements of environmental statisticians and environmental accountants, with some reference to the possible use of environmental data in management and policy analysis. While catering to the needs of data producers, the glossary might thus also be useful for data users.