Geothermal exists, but you would have to take care to design accordingly and even then there are plenty of other ways for a state actor to locate you. It probably doesn’t make much sense to spend money trying to hide from state actors; it’s probably better to (1) avoid conflict prone areas to the extent possible and (2) make it expensive for an attacker to shut you down (use more smaller data centers within a sensitive region, put some of them underground, etc) or (3) accept the risk of data center disruption.