Prof. Inmaculada Ortiz Uribe took part in the cycle of conferences “Ciencia para todos” organized by the Spanish Royal Academy of Sciences, with the seminar “El valor de los residuos y el paradigma de la economía circular”. The conference has been taught on April 20, 2019 in the Main Hall of RAC in Madrid, on May 13, 2019 in the Main Hall of the Club de Prensa Asturiana in Oviedo and on May 14, 2019 in the “Casa de las Ciencias” in Logroño.