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Top3. Computer Resource Utilization And Carbon Emission
A report on “The Energy Consumption and Carbon Footprint of ICT Usage in Australia in 2010” states that ICT is responsible for near about 2.7% of Australia’s total carbon emissions. And it is directly responsible for more than 7% of all electricity generated in Australia (Nagaraju, 2013).
As shown in Figure 1, major contribution to ICT carbon emissions are Data Centre Environment (18.8%), PCs (15.8%), Printers and Imaging Equipment (15.7%) and Servers (14.7%) (Philipson, 2010)
Figure 1. Reconstructed to (Philipson, 2010)
Top4. Need To Study Classified Green Computing Approaches
ICT industry forms a complex group of hardware, software, networks and its users so there must be systematic classification for green computing approaches which address increasingly to sophisticated problems. As indicated in (Nagaraju, 2013) the green computing initiative must features such as Product Longevity, Software and Deployment Optimization, Algorithmic Efficiency amongst other features.
A systematic classification model has been proposed in Section 5 which is comprehensive in nature for future study and involves all major areas of green computing.