http://www.eoi.es/blogs/commons/el-agua-como-bien-comun/
http://www.unglobalcompact.org/Issues/Environment/CEO_Water_Mandate/
http://www.tni.org/article/un-world-water-day-2011-reclaiming-public-water-our-cities
http://www.epa.gov/WaterSense/about_us/index.html
http://ceowatermandate.org/business-case/global-water-trends/climate-change/?lang=en
http://www.elespectador.com/noticias/cultura/vivir/articulo-258295-el-pais-se-esta-quedando-sin-agua
http://www.youtube.com/watch?v=SFdWIy2E9f4
