That is changing with the company’s relatively new corporate environmental site. One big shift in the past six months has been the focus on software as a means of controlling or affecting carbon footprints. The potential for analytics and management technology that helps businesses run scenarios to better plan around emissions, geographic concerns and data center limitations suddenly seems boundless. The other big transition that Microsoft faces, of course, is the Software as a Service (SaaS) movement, which will see its data center footprint mushroom extensively in the coming years.