The objective of this paper is to contribute to ongoing negotiations at the WTO by analyzing MEA traderelated measures in the context of the overall objective of the MEAs. In particular, the paper provides a detailed review of the main provisions and specific trade-related measures found in six “core” MEAs, which are the MEAs most frequently identified in the WTO as relevant to the negotiations. These include the Convention on International Trade in Endangered Species of Wild Fauna and Flora, the Montreal Protocol on Substances that Deplete the Ozone Layer, the Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal, the Cartagena Protocol on Biosafety, the Rotterdam Convention on the Prior Informed Consent Procedure for Certain Hazardous Chemicals and Pesticides in International Trade, and the Stockholm Convention on Persistent Organic Pollutants.