Intel Corporation set itself a goal to reduce its global-warming greenhouse gas footprint by 20% by 2012 from 2007 levels. Through the use of sustainable IT, the Intel IT organization is recognized as a significant contributor to the company's sustainability strategy by transforming its IT operations and overall Intel operations. This article describes how Intel has achieved IT sustainability benefits thus far by developing four key capabilities. These capabilities have been incorporated into the Sustainable ICT Capability Maturity Framework (SICT-CMF), a model developed by an industry consortium in which the authors were key participants. The article ends with lessons learned from Intel's experiences that can be applied by business and IT executives in other enterprises.