I think the idea that they raise outdoor temps over a wide area is a myth spread on facebook. The physics doesn't work out.
Just adding a square kilometre of parking lots raises the surrounding temperatures measurably, so I don't see how building a datacenter that size is going to have less impact
alt Hacker News
Just adding a square kilometre of parking lots raises the surrounding temperatures measurably, so I don't see how building a datacenter that size is going to have less impact