EDITORIAL 

INVESTIGACIÓN ORIGINAL

1. Extracting biodiesel from different types of animal origin residual fat
Candelaria Tejada Tovar.
Lesly Tejeda Benítez.
Ángel Villabona Ortiz.
Luis Monroy Rodríguez.

Abstract
Spanish Version   

2. 100 Women: an environmental education initiative with gender perspective
Marco Aurelio Torres-Mora
Miguel Ángel Venegas-Rojas
Naisly Ada Tovar-Hernández
Jorge Andrés Rojas-Bernal
Ivan Abelardo Prada-Nagai
Juan Manuel Trujillo-González

Abstract
Spanish Version 

3. Preliminary study of bird life associated to  polylepis quadrijuga (rosaceae) patches from “la rusia”, moorland in duitama (boyacá-colombia)
Luz Andrea Meneses Ortegón.
Yimy Herrera-Martínez.

Abstract
Spanish Version  

4. Displacement of thermal floors and the semiotic language of plants as an expression of their biological stress: two social collective imaginations of the caldas population about the effects gnerated by climate change
Yolanda Aguirre Ospina.

Abstract  
Spanish Version 

5. The water footprint as an environmental education strategy focused on the management of water resources: study conducted with rural communities from Villavicencio
Sandra Milena Delgado-García.
Juan Manuel Trujillo-González.
Marco Aurelio Torres-Mora.

Abstract  
Spanish Version  

6. Melliferous flora and apiculture in the pre-rif of the Province of Taza (north of Morocco).
Abdelmajid Khabbach.
Mohamed Libiad.
Abdeslam Ennabili.

7. Environmental assessment of the “bagging” practice in plantain (musa aab simmonds). Quindío, Colombia.
Alexander Torres Rodríguez.
María Elena Bernal Vera.
Elmer Castaño Ramírez.

Abstract  
Spanish Version  

 REFLEXIÓN DERIVADA DE INVESTIGACIÓN

8. A pedagogical model for enviromental education from the perspective of the cognitive structural modifiability.
William R. Avendaño C.

Abstract  
Spanish Version

9. Discussions about the presence of birds of prey, migratory birds and birds under some degree of threat in the city of Pereira, Risaralda
Juan Carlos Londoño-Betancourth.  

Abstract  
Spanish Version  

10. “Defenders of the water movement” at piedecuesta, Santander, Colombia (1995-2005)
Ariel Edmundo Tarazona Pedraza.  

ARTÍCULOS DE REVISIÓN

11. Gaps in environmental education philosophy literature: a review of trends in environmental philosophy ambiental.
Sergio Ángel Baquero.

12. Chemical standpoint about deterioration and biodeterioration of calcareous rocks that make part of cultural heritage  monuments
Roy David Tatis Castro.
Aida Liliana Barbosa López.

13. Multicriteria methods and processes for assessment
Alberto Grajales-Quintero.
Edgar D. Serrano-Moya.
Christine M. Hahn Von-H.

14. Contemporary debates about territorial planning and local management
Jorge Andrés Rivera Pabón.

15. Equine hypothyroidism: an update
José Henry Osorio.
Felipe Ramírez Echeverry.