Green Computing The carbon footprint of computers running the Internet is expected to exceed that of air travel by 2020. The world's data centers emit more gas than do people living in Argentina and the Netherlands, which have a combined population of 57.2 million. As you learned in Innovative Computing 14-1 on page 740, companies are developing unique data center solutions to cope with the massive electricity demands. View online Web sites that provide information about green data centers. Which countries can profit from IBM's Liebert SiteScan? How can companies benefit by adopting the Corporate Average Data Efficiency (CADE) metric? Which countries have the world's lowest and the highest electricity rates? How are companies adopting solar power? Write a report summarizing your findings, and include a table of links to Web sites that provide additional details.