Much progress has been achieved in the last two decades in terms of measuring environmental conditions (through better environmental data, the regular monitoring of indicators and accounting tools), understanding their impacts (e.g., evaluation of related morbidity and mortality, labor productivity, the economic stakes associated with climate change, biodiversity change, damage from disasters) and establishing a right of access to environmental information. A range of environmental indicators can be used to measure human pressure on the environment, the responses from administrations, firms and households to environmental degradation and the actual state of environmental quality.