A recent CleanTechnica article draws a direct line from the World Health Organization's 2012 classification of diesel exhaust as a carcinogen to the modern proliferation of data centers. The classification was a blow to German automakers like Volkswagen, Mercedes, and BMW, who had built lucrative businesses around diesel vehicles. But the article argues that the same health risk is now being repeated, largely unnoticed, by the backup generators that keep data centers running during power outages.
The piece emphasizes that these diesel generators emit the same carcinogenic exhaust, yet data center developers and operators rarely account for the public health impact on surrounding neighborhoods. Unlike the high-profile diesel emissions scandal in the auto industry, the data center sector's use of diesel has attracted far less scrutiny, even as data centers multiply to support cloud computing and AI.
The article does not present new scientific data, but it frames the issue as a moral and regulatory blind spot. It suggests that the industry's focus on energy efficiency and renewable power for normal operations overlooks the intermittent but real pollution from backup systems. The source is a single opinion-driven analysis, so it does not offer counterpoints from industry groups or health regulators, but it makes a compelling case for treating backup diesel emissions as a serious environmental justice concern.