Cloud computing can lead to immense energy saving for U.S., 
according to a new study by the Carbon Disclosure Project (CDP), “Cloud Computing: The IT Solution for the 21st Century,” conducted by independent analyst research firm Verdantix and sponsored by AT&T. The researchers calculate that by 2020, large U.S. companies that use cloud computing can achieve annual energy savings of $12.3 billion and annual carbon reductions equivalent to 200 million barrels of oil.
Verdantix conducted in-depth interviews with multi-national firms—including Aviva, Boeing, Citigroup and Juniper Networks— in diverse sectors. All study participants had adopted cloud services for at least two years. Many of the firms interviewed reported cost savings as a primary motivator, with anticipated cost reductions as high as 40 – 50 percent.https://www.cdproject.net/en-US/WhatWeDo/Pages/Cloud-Computing.aspxhttp://www.att.com
