Data centers are creating ‘heat islands’ and warming the land around them by up to 16 degrees

New research reveals that the vast data centers powering artificial intelligence are creating "heat islands" by significantly warming the land around them. A study, led by Andrea Marinoni of the University of Cambridge, found that surface temperatures increased by an average of 3.6 degrees Fahrenheit after data center operations began, with some areas experiencing rises of up to 16.4 degrees Fahrenheit. These temperature increases, observed globally, can affect areas up to 6.2 miles away and impact more than 340 million people, with an example highlighting a Digital Realty data center in Ashburn, Virginia. The study analyzed temperature data over 20 years from remote sensors, mapping it against over 6,000 AI "hyperscalers" located away from dense urban areas to isolate their specific environmental impact. Researchers filtered out other factors like seasonal changes and global warming trends. Marinoni emphasized the alarming nature of these findings, particularly given the projected boom in AI data centers, which could lead to "dramatic impacts on society" across environmental, welfare, and economic sectors. Deborah Andrews, an emeritus professor not involved in the research, noted that this is the first paper she has encountered focusing on the heat produced by data centers, suggesting that the rapid development of AI may be prioritizing speed over sustainable practices. While other experts, like Ralph Hintemann, found the figures interesting, they posited that emissions from power generation for data centers remain a more critical climate change concern. Marinoni hopes the research will spark further discussion on reducing AI's environmental footprint.