Liberia

The circular material use rate (CMU) measures, in percentage, the degree of circular (secondary) materials in the economy in relation to the overall material use. A higher amount of secondary materials substituting for primary raw materials avoids extraction of primary material. The CMU is calculated as the ratio of the amount of secondary raw materials (U) to the overall material input for domestic use (DMC + U): CMU  =  U / (DMC + U) The amount of secondary raw materials (U) is approximated by the amount of waste treated in domestic recovery plants, minus imported waste destined for recovery, plus exported waste destined for recovery abroad. DMC is the domestic material consumption as defined in economy-wide material flow accounts. The CMU rate indicates the amount of domestically collected waste – destined for material recovery in domestic treatment plants as well as abroad – and fed back into the economy thus saving extraction of primary raw materials.

The circular material use rate (CMU) measures, in percentage, the degree of circular (secondary) materials in the economy in relation to the overall material use. A higher amount of secondary materials substituting for primary raw materials avoids extraction of primary material. The CMU is calculated as the ratio of the amount of secondary raw materials (U) to the overall material input for domestic use (DMC + U): CMU  =  U / (DMC + U) The amount of secondary raw materials (U) is approximated by the amount of waste treated in domestic recovery plants, minus imported waste destined for recovery, plus exported waste destined for recovery abroad. DMC is the domestic material consumption as defined in economy-wide material flow accounts. The CMU rate indicates the amount of domestically collected waste – destined for material recovery in domestic treatment plants as well as abroad – and fed back into the economy thus saving extraction of primary raw materials.

Domestic material consumption (DMC) measures the total amount of materials directly used by an economy and is defined as the annual quantity of raw materials extracted from the domestic territory of the focal economy, plus all physical imports minus all physical exports. The indicator Domestic Material Consumption (DMC) is based on the Economy-wide Material Flow Accounts (EW-MFA). The theory of Economy-wide material flow accounts (EW-MFA) includes compilations of the overall material inputs into national economy, the changes of material stock within the economy and the material outputs to other economies or to the environment. EW-MFA covers all solid, gaseous, and liquid materials, except water and air. Water included in products is included. The three main components of the DMC are:   - the raw materials domestically extracted (domestic extraction);   - the total import;   - the total export. It is important to note that the term "consumption" as used in DMC denotes apparent consumption and not final consumption. DMC does not include upstream hidden flows (materials that are extracted or moved, but do not enter the economy) related to imports and exports of raw materials and products. The indicator provides a basis for policies to decouple the growth of the economy from the use of natural resources so as to achieve a reduction of environment degradation resulting from primary production, material processing, manufacturing and waste disposal. DMC is a useful indicator, as it provides an assessment of the absolute level of use of resources and allows distinguishing consumption driven by domestic demand from consumption driven by the export market. Combined with GDP, it also provides insight into whether decoupling between the use of natural resources and growth of the economy is taking place.   The indicator is a Sustainable Development Indicator (SDI). It has been chosen for the assessment of the progress towards the objectives and targets of the EU Sustainable Development Strategy.   tsdpc220´s table: Eurobase > Tables by themes > Environment and energy > Environment > Environmental accounts > Components of domestic material consumption (tsdpc220) tsdpc220´s table within the SDI set: Eurobase > Tables on EU policy > Sustainable Development Indicators > Sustainable consumption and production > Resource use and waste > Components of domestic material consumption (tsdpc220)

The indicator is defined as the total amount of material directly used in an economy and equals direct material input (DMI) minus exports. DMI measures the direct input of materials for the use in the economy. DMI equals domestic extraction (DE) plus imports. For the ‘per capita’ calculation of the indicator the average population is used (the arithmetic mean of the population on 1st January of two consecutive years). Domestic Material Consumption (DMC) is based on the Economy-wide Material Flow Accounts (EW-MFA). The theory of Economy-wide material flow accounts includes compilations of the overall material inputs into national economy, the changes of material stock within the economy and the material outputs to other economies or to the environment. EW-MFA covers all solid, gaseous, and liquid materials, except water and air. Water included in products is included.

18.1. Source data

   

The indicator is defined as the gross domestic product (GDP) divided by domestic material consumption (DMC). DMC measures the total amount of materials directly used by an economy. It is defined as the annual quantity of raw materials extracted from the domestic territory of the local economy, plus all physical imports minus all physical exports. It is important to note that the term 'consumption', as used in DMC, denotes apparent consumption and not final consumption. DMC does not include upstream flows related to imports and exports of raw materials and products originating outside of the local economy.

20.1. Source data