Google raised a few eyebrows when it purchased a Finnish paper mill back in 2009 -- what, the world, wondered, would the king of cloud services want with reams of tree guts? Space for a data center, of course -- and a seawater-cooled one at that. Google's Joe Kava told GigaOm that, when it launches in the fall, the center's temperature will be regulated by a quarter-mile of seawater tunnels inherited from the building's past tenants. One of the hardest parts of getting the system up and running has apparently been figuring out a way to clean corrosion from salt water without taking the system offline. Google's also working to limit the center's impact on the surrounding ecosystem, making sure
