Global economy is undergoing a new systemic transformation, which led to a significant increase in popularity and profitability of green entrepreneurship throughout the world. The article explores the main trends in the development of green entrepreneurship in modern world economy through a wide range of aspects: as a megatrend in global economy, its share in foreign direct investments (FDI), international trade and consumption, its role and impact. Following the study of the related EU regulations, the author explores the specifics of green entrepreneurship management in Portugal with the focus on the Azores Islands. The research has been conducted using electronic and paper based bibliographic sources in English and Romanian, interviews with the specialists in the field, case study and personal observations.