Sören Steger

Mr. Sören Steger

Wuppertal Institute for Climate, Environment and Energy

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 August 2015 in Resources
Verified
Journal Article
Open access
PDF file
BBBettina Bahn-Walkowiak
Bettina Bahn-Walkowiak
Sören StegerSören Steger
Sören Steger
For 20 years, the number of resource policy approaches with direct and indirect relations to raw materials, resource and material efficiency has grown enormously at national and international level. This discussion paper makes an inventory of different political and regulatory approaches that contain a direct or indirect reference to resources such as construction materials, industrial minerals, or metals. They are examined and evaluated regarding foci and resource priorities as well as further categories such as target lines, governance levels, indicators used, integration into wider target systems, specification, and implementation. The aim is to provide an overview of the spectrum of resource objectives in international, European, and national strategies, programs, and initiatives. The closer analysis of raw material targets embedded in the policy programs and legal approaches reveals that most goals lack a time frame and a concrete vision, thus remain at a strategic level. To complement the overview, the state of research in the field of modeling and simulation is briefly discussed. Concluding remarks concerning their relation to the objectives identified and the task of target setting complete the discussion.

10 February 2021 in Sustainability
Verified
Journal Article
Open access
PDF file
MAMona Arnold
Mona Arnold
EPElina Pohjalainen
Elina Pohjalainen
Sören StegerSören Steger
Sören Steger
WKWolfgang Kaerger
Wolfgang Kaerger
JWJan-Henk Welink
Jan-Henk Welink
Electronics containing growing quantities of high value and critical metals are increasingly used in automobiles. The conventional treatment practice for end-of-life vehicles (ELV) is shredding after de-pollution and partial separation of spare parts. Despite opportunities for resource recovery, the selective separation of components containing relevant amounts of critical metals for the purpose of material recycling is not commonly implemented. This article is aimed to contribute to recycling strategies for future critical metal quantities and the role of extended material recovery from ELVs. The study examines the economic feasibility of dismantling electronic components from ELVs for high value metal recycling. The results illustrate the effects of factors as dismantling time, labour costs and logistics on the economic potential of resource recovery from ELVs. Manual dismantling is profitable for only a few components at the higher labour costs in western/northern parts of Europe and applicable material prices, including the inverter for hybrid vehicles, oxygen sensor, side assistant sensor, distance and near distance sensors. Depending on the vehicle model, labour costs and current material prices, manual dismantling can also be cost-efficient for also some other such as the heating blower, generator, starter, engine and transmission control, start/stop motor, drive control, infotainment and chassis control.

20 April 2013
Verified
Book Chapter
Closed access
Raimund BleischwitzRaimund Bleischwitz
Raimund Bleischwitz
BBBettina Bahn-Walkowiak
Bettina Bahn-Walkowiak
SBStefan Bringezu
Stefan Bringezu
RLRainer Lucas
Rainer Lucas
Sören StegerSören Steger
Sören Steger
OROliver Röder
Oliver Röder
This chapter intends to outline the emerging field of resource policy. A strategic approach is described considering the role of competitiveness and innovation, the influence of barriers and incentives, and the scale and scope of system innovations. Essential elements for resource policies are improved information and dissemination and the creation of lead markets. A sectoral approach is deemed necessary to promote a more efficient and sustainable use of resources in key industries. Adjusting the framework conditions for industry and households might be a prerequisite for making change happen. To proceed at the international level, a strategic partnership between the EU, Japan and the USA is suggested, and elements of a global governance system of sustainable resource management are described.

20 April 2013
Verified
Book Chapter
Closed access
Sören StegerSören Steger
Sören Steger
Raimund BleischwitzRaimund Bleischwitz
Raimund Bleischwitz
The aim of this chapter is to compare the decoupling of GDP from resource use and the ensuing resource productivity across a number of countries as well as to analyse the relationship between resource productivity and competitiveness. The issue is timely because prices on raw material markets had been skyscraping since 2000 and are now back on lower levels, mainly because of the financial crisis. Most experts expect a comeback of high raw material prices as soon as the global economy has recovered.