english: And while these two cities have the same population, San Diego has grown six times larger than Tijuana in the last decades, immediately thrusting us to confront the tensions and conflicts between sprawl and density, which are at the center of today's discussion about environmental sustainability.
non_english: Hoewel beide steden  dezelfde bevolking hebben, is San Diego in de laatste decennia zes keer groter dan Tijuana geworden. Daarmee zien we ons meteen geconfronteerd met de spanningen en conflicten tussen uitgestrekte en dichte bebouwing, die centraal staan in de discussie over ecologische houdbaarheid.