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Discussion (2 Comments)Read Original on HackerNews
While the Earth is (mostly[1]) a closed system when it comes to water, any particular region on Earth is not a closed system with respect to clean drinking water.
Deplete groundwater reserves faster than they refill? No more water for you. Raise the ambient temperature far enough that the rainclouds go somewhere cooler? No more water for you. As long as your usage is below the replacement rate, all seems well. Imbalance the system, and you have indeed "consumed" your local water supply.
> Is the water contaminated with chemicals? Maybe heat?
Typically yes. Definitely yes.
> Can people or wildlife consume it?
With enough water purification infrastructure, sure. I'm not aware of very many datacenters installing such infrastructure.
> Can you use rainwater?
It's all rainwater, whether directly or indirectly. The question is what would have benefited from that rainwater had it not been redirected to a datacenter?
[1]: https://en.wikipedia.org/wiki/Atmospheric_escape
Right, but this is not what is reported by "water consumption". It would be much better to have some kind of index (probably multiple) that estimates how close a particular feature of the water system is to a problem. Is the temperature too high, is there too high a concentration of some contaminant, etc etc.