How mega Internet data centers can go greenhouse gas emission
free  Washington, July 20 : Most big data centers, the global
backbone of the Internet, could slash their greenhouse gas
emissions by 88 percent by switching to efficient, off-the-shelf
equipment and improving energy management, according to a new
research.  The carbon emissions generated by a search on Google
or a post on Facebook are related mostly to three things: the
computing efficiency of IT (information technology) data center
equipment, like servers, storage and network switches; the
amount of electricity a data center's building uses for things
other than computing, primarily cooling; and how much of the
center's electricity comes from renewable or low-carbon sources.
Adding renewable power to the mix can help reduce a data
center's overall emissions by 98 percent when combined with
other strategies, but renewables are not the first choice for
reducing emissions, the analysis shows.  "Of these three,
improving the efficiency of the IT dev