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Definitions and classifications of physical flows

 Issue Description

The SEEA-2003 distinguishes between four types of physical flows: ecosystem inputs, natural resources, products and residuals. Ecosystem inputs and natural resources constitute flows from the environment to the economy. The boundary between them is not clear cut. Products are classified according to CPC and are flows within the economy. Residuals are not clearly defined as they seem to cover flows within the economy and from the environment to the economy. Furthermore, the definition of waste covering both products (with positive value) and residuals (with zero and negative value) is not clear cut. A number of questions need to be addressed, in particular: Should the distinction between ecosystem inputs and natural resources be maintained? Should the definition of residuals and waste -products and residual- be revisited and clarified? Which classification(s) should be used for waste in the SEEA tables (i.e. CPC/HS or EWC Stat)? How should a correspondence be developed between the two? Should the classification of physical flows hold for any type of measurement units used in the various accounts (e.g. water and energy accounts as well as MFA)?

 
 Issue Papers and Corresponding Minutes of Meetings
Issue Papers: Minutes of Corresponding Meetings:
19/02/2010Issue paper on classification of physical flows 19/02/2010Report of the 15th meeting of the London Group on Environmental Accounting
19/02/2010Classification of physical flows 19/02/2010Report of the 14th meeting of the London Group on Environmental Accounting
28/04/2009Classifications of Material Flows for SEEA-MFA 28/04/2009Report of the 13th meeting of the London Group on Environmental Accounting
28/04/2009Classification of physical flows: Part II 28/04/2009Report of the 13th meeting of the London Group on Environmental Accounting
28/04/2009Classification of physical flows 28/04/2009Report of the 12th meeting of the London Group on Environmental Accounting
 
 

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