Data in the Cloud Remains Dirty

http://www.pcworld.com/businesscenter/article/226013/despite_improvements_data_in_the_cloud_remains_dirty.html

"...   The report--part of Greenpeace's "Cool IT" campaign--found that while leading IT companies have made significant improvements in efficiencies throughout their data centers, they continue to derive their energy through carbon-emitting energy sources, primarily coal.   ..."