Our Chicago: How data centers could positively, negatively impact people living in Illinois, Chicago suburbs

ABC7 Chicago's I-Team reported that Illinois hosts 164 operating data centers with many more planned, sparking debate about their impact on local communities and the environment. The city of Joliet recently approved plans for a large data center following hours of public meetings where residents expressed concerns about potential environmental impacts. Brad Tietz, director of state policy for the Data Center Coalition, explained that data centers provide essential infrastructure for online activities, with demand projected to double in the next five years. He noted that while data centers create construction jobs, they also bring highly skilled technical roles. Tietz addressed water usage concerns, stating that while historically data centers have been large water users, some are becoming more efficient, with some facilities in colder climates like Illinois utilizing outdoor air for cooling. Conversely, Jen Walling, CEO of the Illinois Environmental Council, argued that Illinois lacks adequate "guardrails" to protect the environment, maintain low energy rates, and safeguard water resources from the influx of "Big Tech." She cited a report by the Alliance for the Great Lakes, highlighting that some data centers can consume up to five million gallons of water daily, potentially drawing from sources like Lake Michigan. Walling also raised concerns about air pollution from backup diesel generators, which can emit methane gas and particulate matter, affecting nearby residents.