[ovrdrv3]

>Efficient and environmentally friendly air conditioning technology contributes to environmental protection in the data center.

Speaking of environmentally friendly AC methods, I always found it fascinating and simple yet genius when I read the news that facebook has some data centers in very cold parts of the world.

Edit: Here's a little gallery of their data center in northern Sweden: https://www.facebook.com/zuck/posts/10103136694875121

[sametmax]

That's neat. Only economically possible when things get to the scale of facebook or google, but really neat.