ONE IN FOUR DATA CENTERS IS PARKED SOMEWHERE THE WATER ALREADY RUNS OUT

A team led by the Carnegie Institution for Science plotted all 9,347 operational data centers on Earth against local water availability, and found that a quarter of them sit in areas where demand already exceeds supply at least one month a year. Electricity can be hauled across a grid from three states away. Water has to come out of whatever river, lake, or aquifer happens to be sitting there. The close-up is uglier. Near 41 percent of these sites, the biggest water user in the neighborhood is a city full of actual people. Near another 28 percent, it's agriculture. And 523 facilities, roughly 6 percent, sit in places with a water gap at least nine months out of the year. That's not a dry spell, that's the climate. Lead author Lorenzo Rosa explained why nobody had done this sooner: electricity gets metered and reported, while water scarcity gets measured locally, inconsistently, or not at all. So he built the map because it did not exist. An industry that can quote you GPU utilization to the decimal never bothered to check the river. Run the models out to 3 degrees Celsius of warming and the share climbs to one in three. Most of the newly stressed sites are in the US, which already hosts 39 percent of the world's data centers.

Why you should give a shit: The study's own point is that the servers probably stay cool, which means when the basin comes up short, the shortage gets handed to the town and the farm sharing the aquifer.