How green is cloud computing? It's time for CIOs to ask
Just how green is cloud computing? Is cloud computing more or less energy-consuming compared with the typical local data center a company owns and operates for its own use? How about compared with a co-location facility, sited for maximum energy efficiency? Or in contrast to a managed hosting data center, where the average power usage effectiveness, or PUE, is an ideal 1.0? What's the green differential in buying services from a bevy of cloud computing providers versus consolidating the enterpri
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