Laptop or desktop? Which is the least environmentally harmful?
posted May 3rd, 2008 by catkin
Until recently, power consumption in use has received most attention and laptops have been judged the greenest. A more balanced appreciation of life-cycle costs is growing, especially of the very high environmental costs of manufacturing and distribution. Perhaps long life is environmentally more important than low power consumption in use.
Without dependable data on the non-financial life cycle cost of computers, both laptop and desktop, it is hard for consumers to choose the least harmful. Meanwhile how about this list of discriminators?
- • Laptops are smaller and lighter so probably cost less but most of the cost is in manufacturing and most of the manufacturing cost is in the chips and these are similar for laptops and desktops so there may not be much difference.
- • Laptops have shorter lives (more fragile, parts more costly and harder to find, uneconomic to replace batteries, impractical to upgrade).
- • Laptops have batteries (particularly toxic, waste energy in charge/discharge cycle, waste energy when degraded).
- • Laptop components are hard to re-use at end of computer life
- • Wherever possible we can buy for longer life and lower power to encourage the industry to change. That's more of an option when buying desktops and desktop components than when buying laptops.
- • Laptops use less power.
Regards "Laptops use less power", desktops don't have to consume a lot more power than laptops; they could be designed for similar power consumption.
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Question is very complex.
Question is very complex. You cannot say this or that, you can rather say this brand of laptop or that brand of desktop. samsung ln46a650 review | buy samsung ln46a650
Desktops suck power, Laptops
Desktops suck power, Laptops use batterys but still need to be charged? There aint no difference!
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hmmm
liams, whose LCA of the PC dating back some 4 years remains the reference in the field, is critical of the study, citing lack of methodological references in the published study and too narrow a focus. In essence, Dr. Williams told me at the 2008 IEEE International Symposium on Electronics and the Environment was held over the past few days in San Fran, that the impacts attributed to both desktops and laptops by this study appear too low. affordable online education & engineering degrees online
life cycle cost of
life cycle cost of computers, both laptop and desktop, it is hard for consumers to choose the least harmful. Meanwhile how about this list of discriminators?
* • Laptops are smaller and lighter so probably cost less but most of the cost is in manufacturing and most of the manufacturing cost is in the chips and these are similar for laptops and desktops so there may not be much difference.
* • Laptops have shorter lives (more fragile, parts more costly and harder to find, uneconomic to replace batteries, impractical to upgrade).
* • Laptops have batteries (particularly toxic, waste energy in charge/discharge cycle, waste energy when degraded).
* • Laptop components are hard to re-use at end of computer life
* • Wherever possible we can buy for compare and contrast essay &descriptive essay ( personal essay ) longer life and lower power to encourage the industry to change. That's more of an option when buying desktops and desktop components than when buying laptops.
* • Laptops use less power.
It's a great point, the
It's a great point, the answers are certainly not obvious. A life cycle analysis study of desktops and laptops was completed last year in the EU, initiated and financed by the European Commission, DG TREN, in their work with the EuP directive (2005/32/EC) which provides for establishing eco-design requirements for energy-using products (EuP). It addresses desktops and laptops separately. The details of the study are here -- http://www.ecocomputer.org/
Eric Williams, whose LCA of the PC dating back some 4 years remains the reference in the field, is critical of the study, citing lack of methodological references in the published study and too narrow a focus. In essence, Dr. Williams told me at the 2008 IEEE International Symposium on Electronics and the Environment was held over the past few days in San Fran, that the impacts attributed to both desktops and laptops by this study appear too low.
Perhaps we can persuade other researchers at the edge to give us a field report on catkin's highly relevant question.