On summer afternoons in Raleigh, parts of downtown already run several degrees hotter than surrounding neighborhoods, a gap the city has spent years documenting through its urban heat-island mapping program. Now a new study suggests that North Carolina’s accelerating data center buildout could make those hot spots worse and create new ones in communities that have never had to think about industrial heat.
A preprint posted on arXiv by researchers affiliated with the University of Cambridge examined two decades of satellite land-surface temperature data, from 2004 through 2024, around thousands of hyperscale data centers worldwide. Their finding: after a large facility began operating, the land surface within its immediate vicinity warmed by an average of roughly 2 degrees Celsius (about 3.6 degrees Fahrenheit). At outlier sites, the increase reached approximately 9 degrees Celsius (around 16 degrees Fahrenheit). The study has not yet undergone formal peer review, and its figures reflect land-surface readings, which tend to run higher than the ambient air temperatures people actually feel. Still, the scale of the warming it documents has drawn attention in states where data center construction is booming, and few states fit that description better than North Carolina.
This article, published in May 2026, is based on a review of publicly available documents and the preprint study. No data center operators with known North Carolina footprints, including Meta, Apple, and Google, responded to requests for comment. No community residents or advocacy groups were interviewed for this piece, which limits its perspective to what the documentary record shows. Readers should weigh that gap when evaluating the claims below.
Why North Carolina is a focal point
The state has become one of the East Coast’s most aggressive recruiters of hyperscale computing facilities. Apple operates a campus in Catawba County. Google has invested in Lenoir. Meta has built in the Raleigh-Durham corridor, and multiple additional projects are in various stages of permitting across Wake, Chatham, and Mecklenburg counties. The North Carolina Energy Policy Task Force 2026 report, published by the governor’s office, identifies data centers as a primary driver behind the state’s surging electricity demand and references specific North Carolina Utilities Commission filings that detail how planners are scrambling to keep pace…