NAACP sues xAI over unpermitted turbines emitting carcinogens near Mississippi data center.

A federal lawsuit filed by the National Association for the Advancement of Colored People (NAACP) alleges that Elon Musk's artificial intelligence company, xAI, is discharging cancer-linked chemicals into neighborhoods surrounding its massive data center in Southaven, Mississippi. The legal complaint asserts that xAI is currently operating 27 gas turbines without an air permit to power its "Colossus 2" facility, which runs the company's Grok chatbot.

According to the suit, these unpermitted turbines are effectively functioning as a clandestine power plant, emitting smog-forming pollutants, fine particulate matter, and formaldehyde—a known carcinogen—directly into areas populated by homes, schools, and churches. These emissions pose immediate health risks, including airway inflammation, deep penetration into the lungs and bloodstream, and heightened dangers of asthma, heart disease, and cancer. Plaintiffs argue that these alleged violations disproportionately expose predominantly Black communities, which already endure significantly higher rates of respiratory illness, to additional toxic burdens.

The controversy stems from xAI's aggressive expansion following the construction of what the company describes as the world's largest AI supercomputer. Facing insufficient electricity supply from the existing grid, the firm allegedly constructed this unpermitted gas-fired facility to maintain operations. The NAACP is now seeking an urgent injunction from a federal judge to immediately halt the turbines' operation, impose financial penalties, and mandate the installation of pollution control measures.

Abre' Conner, Director of Environmental and Climate Justice for the NAACP, stated in a press release, "A data center should not be a potential death sentence for a community's health." He further criticized the practice as a shameful pattern where companies evade clear air laws to offload toxic byproducts onto Black and frontline communities under the guise of innovation.

The legal action was filed in April against xAI and its subsidiary, MZX Tech, with representation provided by Earthjustice and the Southern Environmental Law Center. The facility, identified in documents as MACROHARDRR, has received over $20 billion in investment and the full support of Mississippi Governor Tate Reeves. This location marks xAI's third data center deployment in the greater Memphis area.

xAI Chief Financial Officer Anthony Armstrong defended the project, noting that the cluster will house a supercomputer with 2 gigawatts of computing power. Last month, xAI attempted to dismiss the case by arguing that the NAACP lacks legal standing and that shutting down the centers would force essential operations—including those supporting US government tools and millions of worldwide users—to precipitously cease. The Colossus Gas Plant is situated at 2875 Stanton Road South in DeSoto County, serving a population of approximately 58,000 near Memphis, Tennessee. Earthjustice claims to have captured thermal drone footage confirming the operation of these unpermitted turbines at the site.

A federal lawsuit now accuses Elon Musk's xAI of pumping cancer-linked chemicals into Mississippi neighborhoods surrounding its massive data center. The legal complaint alleges that turbines at the Colossus Gas Plant in DeSoto County are operating without permits and lacking essential pollution controls. Located at 2875 Stanton Road South in Southaven, this facility sits within a community of approximately 58,000 residents just ten miles outside Memphis.

Earthjustice argues that xAI's power plant could release over 1,700 tons of nitrogen oxides annually, creating dense smog across the greater Memphis area. The group further claims the site will emit an estimated 180 tons of fine particulate matter, 500 tons of carbon monoxide, and a dangerous 19 tons of formaldehyde. These emissions predominantly impact Black communities that already struggle with high rates of asthma and other respiratory illnesses.

Ben Grillot, a senior attorney for SELC, condemned the continued operation without adequate safeguards as both illegal and insulting to nearby families. 'Citizen suits are a bedrock insurance policy for communities to hold polluters accountable for decisions that cause them harm,' stated NAACP lawyer Conner regarding this critical legal action. The complaint requests that courts declare xAI violated the Clean Air Act by failing to secure permits before construction or installation of turbines.

The lawsuit demands immediate halting of turbine operations until federal compliance is achieved and calls for the best available pollution-control technology. Authorities are seeking civil penalties up to $124,426 per day for each violation alongside other remedies. Last month, the Trump Administration attempted to block this NAACP-led suit by arguing that civil penalties and an injunction would threaten national security interests.

This legal battle follows another federal filing last month by Mississippi residents claiming xAI is blasting omnipresent noise that erodes home values and health. Three plaintiffs filed on behalf of a class exceeding 10,000 members, alleging negligence in curbing excessive disturbances. The suit seeks damages for emotional distress, reduced property values, disgorgement of profits, and an end to what they describe as near-constant vibration affecting thousands.