This document discusses how using a cloud fax provider like Retarus can help save money and reduce carbon footprint. It notes that moving to a cloud fax service can save on operational overhead, increase security, lower carbon footprint, and speed up time to market. Additionally, sharing data center resources with other companies through a managed cloud service can significantly reduce the overall carbon footprint by lowering construction and energy costs of individual infrastructure projects. Retarus specifically claims to help customers lower their carbon footprint through a shared cloud environment and electronic invoicing and reporting to monitor communications.