2.2ºC

A group of researchers from Arizona State University have published a study striking. They wanted to estimate the impact of AI data centers on the average temperatures of the region in which they are installed. Their conclusion is disturbing, because this increase can be up to 2.2 ºC. The massive use of AI raises another problem. There is already a clear debate about the water and energy consumption of AI data centers, but this study has focused on an equally important problem: thermal pollution. It’s hot. The researchers focused on the Phoenix metropolitan area, the hottest in the entire US. There, their analyzes indicated that data centers expel air from their cooling systems at temperatures that are between 14 and 25 degrees Fahrenheit above ambient temperature, creating thermals that can affect nearby neighborhoods. The air says it all. This is the first known research to use high-precision vehicle-mounted sensors to compare air temperature before and after passing through the facility. The data was clear: Downwind areas of a data center had average temperatures 1.6ºF higher, with peaks of 4ºF (2.2ºC) compared to the reference areas. Heat island effect. The impact of this increase in temperature is also notable in terms of the distance affected: these increases were detected even 500 meters away from the source, which is equivalent to about five “blocks” of homes in the city of Phoenix. Vicious circle. The very design of data centers causes this problem to feed into itself. A single data center can generate as much waste heat as a small city of 40,000 homes, and the vicious cycle is clear: The data center blows very hot air to cool its servers The air warms the surrounding neighborhood Neighbors use their air conditioners more Air conditioners expel even more waste heat Location is the key. David Sailor, who led the study, indicated that what they seek with their conclusions is not to prohibit data centers, but to rethink their integration with urban centers. To avoid or mitigate problems, solutions are proposed such as reorienting air outlets or creating parks that cushion these increases in temperature. The key, these researchers say, is urban planning: these facilities must be treated as sources of industrial thermal emissions, because that is what they are. Prevent before cure. The projected computing capacity for data centers to be built in the US will double in 2030, which according to this study makes it necessary to take action. The challenge, they say, is to apply these solutions before the waste heat generated by data centers becomes a public health problem. Spain may also have that problem. Projects that affect our country should also take this circumstance into account. In recent months we have seen how the Autonomous Community of Aragón has focused part of the protagonism of agreements with large technology companies, and both Amazon and Microsoft have data centers planned in the metropolitan area of ​​the city of Zaragoza. The towns of Villamayor de Gállego and Villanueva de Gállego are less than 20 km from Zaragoza, and both already have data centers planned. These initiatives promise to boost the region’s economy, but they also bring doubts. Not everyone is in favor of such centers, of course, and there are even judicial processes trying to stop its construction. Image | David Vives and AWS In Xataka | The great paradox of Madrid: the region with the largest energy deficit in Spain is losing the data centers