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Der Stoffhaushalt nationaler Volkswirtschaften und Aspekte eines nachhaltigen Ressourcenmanagements
(2002)
It is not the scarcity of resources that constitutes environmental problems, but their use, the physical throughput of our economies. Material flows are a proxy for the totality of the unspecific environmental risks from human activities. As a strategic goal, an increase of the life-cycle-wide resource productivity by a factor 10 is suggested, including the materials bought and sold and the not-valued materials: we have to take into account the product itself and its "ecological rucksack". Material flows are best measured at the input side of the economy, where their number as well as the number of entry gates is limited. Thus here regulation and economic incentives can work more efficiently and less bureaucratically than today. The material intensity of products and services can be expressed as MIPS, the material input per unit of service, and as TMR, the total material requirement on the macro level, an important element in physical input–output tables.
An input-output approach to analyse the Total Material Requirement (TMR) of national economies
(1999)
This report focuses on the contribution of ICT to improvements in resource efficiency and transport intensity at the macro, meso and micro levels. It presents the research on environmental effects of e-business and e-work.
The research strand explored the implication of ICT and its applications from the micro- (case study), meso- (different e-business types) and macro-level (macro-economic and policy level).
The "macro-analysis-module" aimed at quantifying the potential contribution of e-business and ICT to dematerialisation and resource productivity. The analysis followed a top-down approach complementary to the case study based microanalyses. It compromised the analysis of energy-use and selected material flows (CO(2)) of three EU Member States to determine whether there is any macro-level evidence of dematerialization and increased resource productivity resulting from e-business and ICT.
From a micro and meso level perspective, the research object has been the provision of new IT based applications instead of "traditional" products, services and customs (e-commerce and telework). The research quantified the resource- and transport efficiency of e-business in different case studies and identified key factors determining the impact on resource- and transport efficiency.
Sektorale Analyse der Strukturwandelprozesse auf dem Weg zu einer dematerialisierten Wirtschaft
(2003)
Rationale for and interpretation of economy-wide materials flow analysis and derived indicators
(2003)
Economy-wide material flow analysis (MFA) and derived indicators have been developed to monitor and assess the metabolic performance of economies, that is, with respect to the internal economic flows and the exchange of materials with the environment and with other economies. Indicators such as direct material input (DMI) and direct material consumption (DMC) measure material use related to either production or consumption. Domestic hidden flows (HF) account for unused domestic extraction, and foreign HF represent the upstream primary resource requirements of the imports. DMI and domestic and foreign HF account for the total material requirement (TMR) of an economy. Subtracting the exports and their HF provides the total material consumption (TMC). DMI and TMR are used to measure the (de-) coupling of resource use and economic growth, providing the basis for resource efficiency indicators. Accounting for TMR allows detection of shifts from domestic to foreign resource requirements. Net addition to stock (NAS) measures the physical growth of an economy. It indicates the distance from flow equilibrium of inputs and outputs that may be regarded as a necessary condition of a sustainable mature metabolism. We discuss the extent to which MFA-based indicators can also be used to assess the environmental performance. For that purpose we consider different impacts of material flows, and different scales and perspectives of the analysis, and distinguish between turnover-based indicators of generic environmental pressure and impact-based indicators of specific environmental pressure. Indicators such as TMR and TMC are regarded as generic pressure indicators that may not be used to indicate specific environmental impacts. The TMR of industrial countries is discussed with respect to the question of whether volume and composition may be regarded as unsustainable.
Diese Studie untersucht den Zusammenhang zwischen Globalisierung, also der Zunahme der weltweiten Handelsverflechtungen, und ausgewählten ökologischen Implikationen unter besonderer Berücksichtigung von "Nord-Süd-Konstellationen". Obgleich der weltweite Handel sich Mitte der 90er Jahre deutlich vom Weltwirtschaftswachstum abgehoben hat und seitdem nahezu dreimal schneller ansteigt als das Weltsozialprodukt, steigen ausgewählte weltweite Umweltbelastungsindikatoren in Form von Energieverbrauch und CO2-Emissionen nicht in dem Maße an wie der Welthandel. Globalisierung führt offenbar nicht zu einem im gleichen Ausmaß ansteigenden globalen Umweltverbrauch. Im Rahmen einer derartigen Entkoppelung kann es jedoch hypothetisch zu Verlagerungen kommen. Derartige Verlagerungseffekte werden im vorliegenden Papier exemplarisch am Beispiel der globalen Stoffstromverflechtungen der Europäischen Union untersucht. Es zeigt sich, dass im Verlauf der Globalisierung die EU-Länder vermehrt Umweltbelastungen in die Länder des Südens verlagert haben, vor allem in Form von ökologischen Rucksäcken der Rohstoffimporte. Gleichzeitig wurde der Druck auf die inländische Umwelt in Form von Ressourcenabbauprozessen reduziert. Des Weiteren wurden vermehrt "umweltbelastungsintensive" Waren aus Schwellenländern und Entwicklungsländern importiert. Diese zeichnen sich durch emissionsseitige Umweltbelastungen in den jeweiligen Schwellenländern und Entwicklungsländern aus (industrielle Luft- und Wasseremissionen, Schwermetallemissionen). Dabei diente das verstärkt aus ausländischen Ressourcen gedeckte Materialaufkommen in der EU weniger dem inländischen Konsum; es wurde vor allem zur Herstellung von Gütern für den Export verwendet, und zeigt somit einen zunehmenden Beitrag der EU zum Ressourcenaufwand anderer Ökonomien an. Das Papier leitet ab, dass bei einer Strategie der Ressourcen-Produktivitätssteigerung in Industrieländern, die internationale Dimension unbedingt zu berücksichtigen ist. Längerfristig sollte der Ressourcenverbrauch der EU auch in absoluten Mengen vermindert werden. Dies wäre auch erforderlich, um die Umweltbelastungen durch Importe und Exporte zu vermindern.
Material flows
(2003)
This paper examines the connection between globalisation, with its growth in world trade links, and certain ecological effects especially concerning "North-South" relations. Although world trade in the mid-nineties was significantly uncoupled from growth trends in the world economy, so that since then it has increased nearly three times faster than the global GDP, certain indicators of energy use and CO2 emissions have not developed proportionately to world trade; globalisation evidently does not lead to a situation where pressures on the environment are increasing to the same extent worldwide. This de-linking may, however, result in the kind of shifts that we examine here with reference to the material trade flows of the European Union. It will be shown that, in the course of globalisation, the countries of the EU have increasingly shifted environmental burdens on to the countries of the South, especially in the form of ecological rucksacks of imported raw materials, while at the same time reducing the pressure on their own domestic environment by extracting fewer material resources. Furthermore, goods whose production places intensive pressure on the environment (industrial emissions into the atmosphere and water, heavy metal emissions, etc.) have been increasingly imported from newly industrializing or developing countries. The greater covering of material requirements from foreign resources has served not so much the EU's internal consumption as its own production of export goods; this shows that the EU has an increasing share in the resource requirement of other economies. The paper concludes that it is absolutely necessary to consider the international dimension in any strategy for more productive use of resources in industrial countries. In the long term, the EU's resource use should also be reduced in absolute terms. This will also be necessary in order to reduce the pressure on the environment due to imports and exports.
Bridging the data gap
(2004)
Klimawandel, Hungerkrise, Rohstoffknappheit und Naturzerstörung stehen auf der internationalen Tagesordnung. Dennoch geht in der Politik, in der Wirtschaft und im Alltag Vieles weiter wie bisher: Für Flughäfen werden neue Start- und Landebahnen geplant, neue Kohlekraftwerke sollen gebaut werden und Heizpilze sprießen aus dem Boden. Im Zweifelsfalle sind der Politik die Ankurbelung der Nachfrage und die Interessen der Autoindustrie wichtiger als der Klimaschutz. Und selbstverständlich sollen Lebensmittel, T-Shirt und Turnschuhe wenig kosten. Armut in Entwicklungsländern hin, Umweltverschmutzung in Schwellenländern her. Die Notwendigkeit einer nachhaltigen Politik wird vielfach beschworen - und ungebrochen dem Wirtschaftswachstum Vorrang eingeräumt.
Der Klimawandel ruft nach nichts weniger als einem Zivilisationswandel. Das war die Ausgangslage für ein interdisziplinär angelegtes Forschungsprojekt des Wuppertal Instituts unter der Leitung von Prof. Dr. Wolfgang Sachs. Es wurde im Sinne einer Zwischenbilanz gefragt, "ist Deutschland zukunftsfähiger geworden und wie haben sich die Bedingungen mit der Globalisierung verändert?".