This web format for Environment at a Glance Indicators provides real-time, interactive online access to the latest comparable Organisation for Economic Co-operation and Development (OECD) country data on the environment from the OECD Core Set of Environmental Indicators—a tool to evaluate environmental performance in countries and to track the course towards sustainable development. The web version allows users to play with the data and graphics, download and share them, and consult and download thematic web-books. These indicators provide key messages on major environmental trends in areas such as climate change, biodiversity, water resources, air quality, circular economy, and oceans (forthcoming). They will be accompanied by a short Environment at a Glance report that presents a digest of the key messages stemming from the indicators.