As a believer in the organisational and efficiency benefits of Cloud computing, it is nice to see some hard evidence and facts of the environmental benefits as well.

http://newscenter.lbl.gov/news-releases/2013/06/11/berkeley-lab-study-finds-moving-select-computer-services-to-the-cloud-promises-significant-energy-savings/

The following is are link to the actual report:

http://crd.lbl.gov/assets/pubs_presos/ACS/cloud_efficiency_study.pdf