The third paragraph of my comment already addressed this. A data centre is not a foundry. In a metal foundry some of the physical externality is intrinsic to d

The third paragraph of my comment already addressed this. A data centre is not a foundry. In a metal foundry some of the physical externality is intrinsic to doing the process. It's a continuous industrial chemical operation emitting smoke, metal fumes, VOCs, dust, sound etc. You can capture 99% of pollution, but you're still melting, casting, shaking out and finishing tonnes of hot metal and sand. Complete physical isolation is expensive and imperfect. With data centres, most local externalities are engineering choices. With enough money and sensible siting, you could plausibly build one whose effect on neighbouring residents is extremely close to nil. The biggest remaining externalities occur upstream in the electricity/water/grid system - and those are unusually amenable to being charged directly to the operator. If a local data centre is impacting you negatively it's a failure of your government because it didn't need to be that way. It's not an intrinsic part of data centre operation. They turn electricity into heat and money, a comparatively simple factory to have completely deal with its own externalities.