"Mexico" . . "Cactus Film & Video (Firm)," . . "Cactus Film & Video (Firm)" . "Water-supply." . . "City planning Environmental aspects." . . . . . . "Feature films" . . "Mexico City was built not near water but in the middle of a lake. To supply it with fresh water is such a task that it makes it compulsory to bring it from other states. In addition once sewage water leaves the city it ends up in agriculture. This film is an environmental case study of the Valley of Mexico as it struggles to save itself while its population grows. Can a mega-city mobilize its 22 million citizens to become water sustainable?" . "Nonfiction films" . "H2Omx" . "Mexico City was built not near water but in the middle of a lake. To supply it with fresh water is such a task that it makes it compulsory to bring it from other states. In addition, once sewage water leaves the city, it ends up in agriculture. This film is an environmental case study of the Valley of Mexico as it struggles to save itself while its population grows. Can a mega-city mobilize its 22 million citizens to become water sustainable?" . . . . . . "H2O" . . . . . . . . . . . . . . "Environmental films" . "Documentary films" . . . . "H2O mx" . . "Icarus Films," . . "Icarus Films." . "City planning Environmental aspects Mexico Mexico City." . . "Sustainable development." . . "Instituto Mexicano de Cinematografía," . . "Instituto Mexicano de Cinematografía." . "Water resources development Mexico Mexico City." . . "Water-supply Mexico Mexico City." . . "Sustainable development Mexico Mexico City." . . . . "Water resources development." . .