[2] He has led several campaigns for environmental assistance and awareness across Colombia, including in San Andrés, Chocó, La Guajira, and Putumayo.

[1] Prieto has participated in various political forums and negotiations advocating for pro-environment policies: Insertion of Colombia in the Escazú Agreement for Latin America;[3] Energy Transition Table; and proposals to President Iván Duque after the social unrest of autumn 2019.

In this case, Prieto denounced the lack of preventive policies on air and water pollution and the need to sign the Escazú Agreement.

He collaborated with the TV program Muy Buenos Días for 11 years, has worked with the RCN Channel directed by Jota Mario Valencia,[7] and is currently the host of Vida conciencia and of "Conversaciones en Casa" on Canal Capital.

[8] In his book "El perro a cuadros" (2013) he recounts his memories of childhood and youth when he began to be aware of the ecological crisis, and proposes environmental methodology through responsible consumption.