The clandestine production of synthetic drugs is causing significant environmental pollution, according to the French Observatory on Drugs and Addictive Trends (OFDT). These drugs, including amphetamines, methamphetamines, MDMA, and ketamine, are often manufactured in secret labs, generating large amounts of chemical waste that can contaminate soil, water, and air. The OFDT warns that people may unknowingly ingest, breathe, or absorb traces of these substances through water, food, or environments affected by drug trafficking or use. This exposure poses health risks that are not yet fully understood. The production and trafficking of synthetic drugs are entirely unregulated, meaning that environmental and safety standards do not apply. As a result, the waste from these processes can end up in the environment, where it is difficult to remove. Wastewater treatment plants, for example, are not designed to handle the complex chemical residues from these drugs, leaving them in waterways and potentially harming ecosystems. The OFDT describes this as causing "serious ecotoxicological damages," which can lead to behavioral changes in wildlife or even genetic mutations in some species. The OFDT highlights three key factors that make the environmental impact of synthetic drugs even more severe. First, these substances can remain in the environment for a long time, lingering in soil or sewage systems. Second, they may still be present on surfaces even after decontamination efforts. Third, the unregulated mixing of different chemicals during production can create more toxic combinations, a phenomenon the OFDT calls the "cocktail effect." These factors increase the risk of long-term environmental harm and complicate cleanup efforts. While the OFDT acknowledges that more research is needed to fully understand how these substances spread and affect the environment, it emphasizes the need to bring these issues into public and political discussions. Currently, debates about drug use are often focused on security and criminal justice, with less attention given to the environmental consequences. The OFDT calls for an approach to drug policy that includes environmental justice, ensuring that the ecological impact of drug production is not overlooked.