Datacenters have very little side-effects. The whole environmental "costs" are overblown. They consume little space and water when compared to agriculture and you don't need to have them in the city center. They can exist in remote and desolate areas. As far as electricity, they pay their bills themselves most of the time.

Compare that to most other industries where you have pollution, noise, truck traffic, low paying and neck-breaking jobs, need import/export ports, etc. The footprint of datacenters is rather low.

Most countries have a sh%t ton of space and some have lots of water (ie: Chile). There is little reason not to have them.