| AIJ | Activities Implemented Jointly |
| AIPN | Association of International Petroleum Negotiators |
| BOT | Build Operate and Transfer |
| CBD | Convention on Biodiversity |
| CDM | Clean Development Mechanism |
| CDMJV | Clean Development Mechanism Joint Venture |
| CDMJVA | Clean Development Mechanism Joint Venture Agreement |
| CER | Certified Emission Reductions |
| CO2 | Carbon di-oxide |
| COP | Conference of the Parties |
| MOP | Meeting of the Parties |
| MMT | Methylcyclopentadienyl Manganese Tricarbonyl |
| ERT | Emission Reduction Targets |
| ERU | Emission Reduction Units |
| ETC | Emission Trading Contract |
| EU | European Union |
| GEIC | Global Environmental Information Centre |
| GHG | Greenhouse Gas |
| ICC | International Chamber of Commerce |
| IFF | Intergovernmental Forum on Forests |
| IPF | Intergovernmental Panel on Forests |
| KP | Kyoto Protocol |
| ISO | International Standards Agreement |
| ITTO | International Tropical Timber Organisation |
| JI | Joint Implementation |
| JOA | Joint Operating Agreement |
| JVA | Joint Venture Agreement |
| MAI | Multilateral Agreement on Investment |
| MEA | Multilateral Environmental Agreement |
| MFN | Most-Favoured-Nation Status |
| NAFTA | North American Free Trade Agreement |
| NT | National Treatment |
| PAMs | Policies and Measures |
| QELR | Quantified Emission Limitation Reduction |
| QELRO | Quantified Emission Limitation Reduction Objectives |
| SO2 | Sulphur di-oxide |
| SPS | Sanitary and Phytosanitary (GATT,1994) |
| TBT | Technical Barriers to Trade Agreement (GATT, 1994) |
| UNCITRAL | United Nations Commission on International Trade Law |
| UNCTAD | United Nations Conference on Trade and Development |
| UNIDO | United Nations Industrial Development Organisation |
| UNFCCC | United Nations Framework Convention on Climate Change |
| UNU | United Nations University |
| UNU/IAS | United Nations University Institute of Advanced Studies |
| WTO | World Trade Organization |