Swiss Infrastructure as a Service (IaaS) provider CloudSigma takes many of the usual approaches to cleaner computing: using renewable sources of energy, streamlining the number of data centers, increasing server efficiency and offsetting carbon emissions. The provider was also one of the first to offer solid-state drive (SSD) storage options for the public cloud environment, sparking faster, more reliable performance on fewer servers and less power. But CloudSigma's commitment to efficiency is also evident on a more fundamental level. Celebrating flexibility and a waste-not-want-not mentality, the company offers a highly customizable platform that gives customers the ability to instantly adjust the capacity of its servers. Storage, bandwidth, CPU and RAM are all independently configurable, so users can choose to purchase only the resources they are certain to use. This cost-efficient model incentivizes educated customers to become more educated about their cloud options and, in turn, bolster their own sustainability efforts.