Huge DCs like Amazons and ours at Google are very efficient, cooling uses at most 10% of total power. So cranking up this wouldn't help. Nor wouldn't it be possible usual anyway, as these are typically using evaporation cooling, which can't really be cranked up like traditional compression cooling. And keeping a huge tank and heater ready would introduce another point of failure. The easiest is just to have your servers do some heavy calculations.
Not sure where you get this from, I'm not in an Android team, but from what I can see the top offered workstation one can get at Google has 64 GB of RAM.
I was replying to the parent on Google not being industry leading efficient and especially comparing to the Yahoo Lockport DC.
But you're right, regarding to water usage we don't publish numbers (nor does anyone else afaik, I haven't found any WUE number for e.g. Amazon, Yahoo, Facebook...) so it's difficult to compare this to others.
I am however confident that a lot of things have been considered and this was the best option, we have imho a good track record trying to do the best for the environment, a lot of attention is being paid to this internally. E.g. everything running on green electricity, which is not the cheapest.
We are industry-leading efficient, the water is used for evaporative cooling, very efficient. Other sites use water from an industrial canal or cold sea water.
Either case, I doubt it is "15% of the internets current data rate" as they claim. E.g. the newish submarine cable between the US and Japan has 60 Tb capacity. And that's just one cable.
