03/18/2010 05:12 am ET Updated May 25, 2011

Underground Data Center Will Heat Helsinki Homes

The Finnish capital of Helsinki is preparing to house what may be the greenest data center on the planet.

Hidden deep within the bedrock of a massive cave underneath popular orthodox Christian landmark Uspenski Cathedral, the planned data center -- which will be comprised of hundreds of computer servers -- is expected to emit substantial amounts of heat.

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