For the full article go to npr.org 

Greenpeace, an international nongovernment agency, set out its yearly report asking "How Clean (and Green) is Your Cloud?" They observed the six largest internet companies, scrutinizing their cloud facilities to see just how efficient these companies are. A cloud facility is where large companies get their electricity from. Large companies can use as much electricity as 180,000 homes. Making it quite difficult to power and remain green.

Amazon, Apple, and Microsoft are continually and quickly growing, and they depend on coal. Coal is a heavy polluting resource, which ultimatley left Amazon and Apple with "F's." When Greenpeace communitcated its discoveries with Apple and Amazon, some disputes over accuracy broke.

Yahoo on the other hand seems to have been the using clean and renewable resources for electricity. Both Yahoo and Google have always been pushing for renewable energy sources. Especially now with their company in Facebook, that is being buitl in Sweden, which utilizes wind as a major energy source. Dell has also been using much clean and renewable sources for energy. 

Good news for Yahoo, Google, and Dell for making good use of our Earth's natural and renewable resources. I hope to see improvement from Microsoft, Amazon, and Apple, I think we should all try to be a little greener.

Henn, S. (Writer) (2012). Greenpeace: How clean (and green) is your cloud? [Radio series episode]. InAll Tech Considered. New York: National Public Radio. Retrieved from http://www.npr.org/blogs/alltechconsidered/2012/04/17/150808257/greenpeace-how-clean-and-green-is-your-cloud