System of Environmental-Economic Accounting (SEEA) is a framework to compile statistics linking environmental statistics to economic statistics. SEEA is described as a satellite system to the United Nations's System of National Accounts (SNA). This means that the definitions, guidelines and practical approaches of the SNA are applied to the SEEA. This system enables environmental statistics to be compared to economic statistics as the system boundaries are the same after some processing of the input statistics. By analysing statistics on the economy and the environment at the same time it is possible to show different patterns of sustainability for production and consumption. It can also show the economic consequences of maintaining a certain environmental standard.
Scope The SEEA is a satellite system of the SNA that consists of several sets of accounts. In broad terms, the area can be described as enabling any user of statistics to compare environmental issues to general economics, knowing that the comparisons are based on the same entities, for example, pollution levels caused by a producing industry can be linked to the specific economics of that industry. The different areas of SEEA can be briefly described as follows:
Flows of materials and energy By this is meant flows of materials and energy through the economy, e.g., fuels, natural resources and chemicals, together with their emissions, may it be air emissions, water pollution or waste to which these flows give rise. Data on emissions, above all to the air, have been published for many countries, in particular, European countries following SEEA. The main difference between traditional emissions statistics and emissions in environmental accounts are related to the system boundaries. For example, the inventories produced for the reporting of air emissions to the United Nations Framework Convention on Climate Change (UNFCCC) are based on the geographic borders of a country while the air emission accounts following SEEA use the boundary of a specific economy (this is the "residence principle" of the national accounts). This difference is mainly shown in transport emissions as all emissions caused by an economy are included in SEEA. For example, emissions from trucks, ships or airplanes are allocated to their country of origin, even if the emissions occur outside of the borders of this country. Moreover, in the UNFCCC inventories, "transport" is a specific sector of its own and it is not possible to know the share of households and of different industries in the transport emissions. Other statistics that have been developed with relation to flows of material are economy-wide material flow accounts and still being developed are energy flow- and water flow accounts.
Environmental economic statistics Economic variables that are already included in the national accounts but are of obvious environmental interest, such as investments and expenditure in the area of environmental protection, environment-related taxes and subsidies, and environmental classification of activities and the employment associated with them, etc. In principle, environmental taxes and environmental protection expenditures can be regarded as two sides of the same coin. Both entail costs involved in production processes that are related to the exploitation of the environment in different ways. On the one hand, environmental protection expenditures record spending on measures aimed at improving the environment, while on the other hand, taxes record the costs set by a government for the exploitation of the environment. Thus, in the total cost of production, the environmental taxes paid can be added to expenditure on environmental protection.
Stocks of natural resources Natural resources in the sense that the accounts should make it possible to describe stocks and changes in stocks of selected finite or renewable resources. These accounts deal with questions related to the monetary valuation of this natural capital, the physical quantities and qualitative aspects that do not have any market monetary value, e.g., the value of outdoor recreation and biodiversity. Such accounts may be compiled for sub-soil assets (e.g., oil and gas resources), biological resources (e.g., forests, fish stocks), land and ecosystems.
Ecosystem accounts The SEEA Ecosystem Accounting (SEEA EA) is a statistical framework that provides a coherent accounting approach to the measurement of ecosystems. Ecosystem accounts enable the presentation of data and indicators of ecosystem extent, ecosystem condition, and ecosystem services in both physical and monetary terms in a spatially explicit way. The United Nations Statistical Commission adopted the SEEA EA standard at its 52nd session in March 2021. Following its adoption, the Statistics Division of the United Nations Department of Economic and Social Affairs (UN DESA) in collaboration with the United Nations Environment Programme (UNEP) and the Basque Centre for Climate Change (BC3) released the ARIES for SEEA Explorer in April 2021, an artificial intelligence-powered tool based on the Artificial Intelligence for Environment and Sustainability (ARIES) platform for rapid, standardized and customizable natural capital accounting. The ARIES for SEEA Explorer was made available on the UN Global Platform in order to accelerate SEEA’s implementation worldwide.
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