One of the drives to Cloud is that it is suppose to be green, but is Amazon Web Services green itself ?

Amazon Web Services has been under fire in recent weeks from a group of activist customers who are calling for the company to be more transparent in its usage of renewable energy.

In response, rather than divulge additional details about the source of power for its massive cloud infrastructure, the company has argued that using the cloud is much more energy efficient than customers powering their own data center operations.

But the whole discussion has raised the question: How green is the cloud?

Lets find out: