3. they flood
Depends on the cave. Of course, if you're going to build a dam a scant three miles away and vastly raise the water table, well, it's probably going to be a concern with this cave.
Dam is already there, they're just adding a hydro electric plant to it. Lock and Dam 21
1. they are hard to get to
2. they are hard to get supplies to and build in
3. they flood
4. they have air quality issues
5. and they ARE cool... until you put a bunch of servers in them, and then they heat up, and STAY hot, and are harder to cool than on the surface
the idea of servers in caves sucks
1. Having seen these caves first hand, I know for a fact that a good many of them can be driven into directly, doesn't get much easier to get to than that.
2. (See 1)
3. Haven't seen or heard of much flooding in these.
4. The ones I've driven past have massive ventilation fans outside, and can handle removing vehicle exhaust. What are you doing to the air quality in there that's worse than exhaust? Burrito day?
5. Not sure on 5, but they do manage to store refrigerated goods in them, as another poster points out. I'd handle this by drilling wells into the floor of the cave and circulating water if the cooling wasn't sufficient.
"Ask not what A Group of Employees can do for you. But ask what can All Employees do for A Group of Employees." -- Mike Dennison