narrator: on thihis episode of "e"earth fococus," avocadodos he become one of the most popular foods on the planet and exploded into a multibillion-dollar industry. the petorca province in chille is a hub of worldldwie avocado production, but the growth of the industry has created a crisis over water rights, raising questions about the moral dimensions of how our avocados are grown and consumed.

different announcer: "earth focus" is made possible in part by a grant from anne ray foundation, a margaret a. cargill philanthropy; the orange county community foundation; anththe farvue f foundation. [man s speaking spanish]

[laughter]

[m[motor starts]

[indistinct chatter] [singing in spanish]

[thunder]

[music playing] [indistininct chatter]

[maan speaking spanish]]

announcer: "earth focus" is made possible in part by a grant from

anne rayay foundation, a margart a.a. cargill philanthrhropy; the orange county commmmunity foundation;; and the farvue f foundation.

this is my origin and my destination. our apartment here in frederiksberg in the heart of copenhagen. but t in my work, , travelliling around t the world, i look differently at my own city now. i see the challenges and i see the hurdles. this city has been a global benchmark for urbanism for many years, and i want to show you some of the great things that make this city so unique and make it work so well. leadership is not "resting on your laurels". it is a constant search for innovation, for improvement, for urban dedevelopment. i want to find out what the state of the urban nation is right here, in my own city: copenhagen. but first... it's time for schoolol. you guys ready? yeah. - all right. l let's do it.