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It was our goal to study the evolution of personal computer lifespan and to identify methods by which this aspect of technological progress could be quantified and integrated into life cycle assessments and other environmental assessment studies. This approach was operationalized through a case study of computer adoption and life cycle parameters in a major U.S. university, Arizona State University...
Along with the rapidly increasing number of personal computers, the energy consumption associated with a computer has attracted increasing attention. However, different Life Cycle Assessment (LCA) studies of computers report qualitatively different results. This analysis estimates the energy needed to manufacture a laptop computer using hybrid LCA. Reasons for focusing specifically on laptop computers...
This paper assesses the forward and reverse supply chain of computers in developing countries by using Peru as a case study. The aim is to develop more sustainable post-consumer management. The Peruvian forward supply chain of non-mobile personal computers (nmPCs) is a combination of domestically assembled, imported new and imported used machines, with estimated shares of 70, 18 and 12 percent, respectively.
E-waste, the CO2 impact of the IT industry and increasing demands for corporate social responsibility are the driving forces behind the ??Green IT?? boom. Tools such as Environmental labelling of IT equipment and other claims to environmental preferability are guiding consumers to more ecologically sound choices of IT equipment. At the same time, consumers have an endless demand for high performance...
We assessed a multipurpose Information and Communications Technology (ICT) service that provides multiple services by using a Gross Social Feel-good (GSF) index that we had previously used to assess single purpose services. It is difficult to integrate the assessment results of each service when assessing multipurpose services because of shared hardware and the synergy effect. However, we found that...
Because of the underdeveloped market for used computers, a large number of functional systems are going to waste. A significant barrier to the development of a market is the inability to communicate the worth of a computer. In order to overcome this barrier, a system for determining the value through monitoring of the conditions under which it is used is suggested. This system uses sensors already...
This paper summarizes recent explorations of the use of lifetime exergy consumption as a thermodynamically based metric for sustainability of information technologies. Other proposed thermodynamic metrics are described and compared with life cycle exergy consumption. The pros and cons of different metrics are discussed, and the advantages of life cycle exergy as a metric for information technologies...
Environmental policy making, green product rating, and marketing activities seem likely to drive the utilization of eco-assessments in the near future. In this paper we show from the example of EuP Preparatory Studies and other policy supporting studies some characteristics of ICT eco-assessments on different economical levels. We argue that the high diversity of individual cases coupled with technology...
Corporations and institutions, including the electronics manufacturing and computer services sectors have become concerned with their impacts on climate change and are participating in carbon footprint assessment and climate management discussions. Existing carbon footprint protocols classify carbon footprint into tiered ldquoScopesrdquo: direct emissions as ldquoScope 1rdquo, emissions from direct...
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