The environmental marketing of goods and products have a substantial influence on the demand and supply. This thesis reviews the scope, advantages and disadvantages of diverse types of environmental marketing and further addresses the need for international regulations on eco-labeling programs. This thesis finds that there is a substantial connection between trade and environmental marketing which has resulted in the need for an international harmonization of eco-labeling strategies including the General Agreements on Tariffs and Trade (GATT). The thesis concludes with propositions for a uniform international standard on eco-labeling for the adoption of environmentally-sound best practices and the mitigation of international trade barrier problems.