Which cloud computing heavyweights are greenest in their use of electricity for the cloud, and which are the dirtiest? Greenpeace has just released a report about it, and how Google, Microsoft, Apple, Facebook, and others fared will surprise you.
The report, "How dirty is your data?" looks at the energy use of top companies providing cloud-based services, including Google, Microsoft, Apple, Amazon (Amazon Web Services), Akami, Facebook, HP, Twitter, IBM, and Yahoo.
Generally, Greenpeace is not impressed with the greenness of any of the companies. It says they are too dependent on the use of dirty energy like coal, largely ignore renewable energy, and pay little attention to the effects of their data centers on the environment.