Support OneGreenPlanet Being publicly-funded gives us a greater chance to continue providing you with high quality content. Please support us! Support Us A new report by the Environmental Investigation Agency (EIA) shows that grocery stores, including Walmart, are leaking greenhouse gases like hydrofluorocarbons (HFC) into the air. The report found that many are leaking a refrigerant that’s dangerous for climate change. Advertisement Leaking Havoc: Exposing Your Supermarket’s Invisible Climate Pollution looked at Walmart and other large grocery chains in the Washington, D.C. area, including Maryland and Virginia. The months-long investigation found that half of the stores were leaking refrigerants. EIA camera’s detected refrigerant leaking onto products in a store, in one instance.