The rapid growth of AI is creating an unexpected environmental concern as demand for semiconductors and advanced data-center cooling drives plans to expand PFAS, or “forever chemicals,” production, according to ChemSec. These chemicals are used in chip manufacturing and some high-performance cooling systems because of their resistance to heat and chemicals. ChemSec warns that companies including Chemours are expanding capacity even as regulators in the US and Europe increase scrutiny of PFAS due to their persistence and environmental risks. The development highlights a growing tension between the massive infrastructure demands of AI and the push for cleaner, safer technology supply chains.