Headline: De frente: Timo ambiental del etanolLink: https://www.nacion.com/opinion/columnistas/de-frente-timo-ambiental-del-etanol/S…Publication Date: Monday, April 8, 2019Primary Source: La Nacion (Costa Rica)Type: op-edFormat: Newspaper (Print)Nature of Mention: authoredScholar: Hidalgo, Juan CarlosResearch Area: International Economics and DevelopmentSubjects: ethanol environmental impact in Costa Rica