01:14
Coastline Threats
Explorer and environmentalist Jean-Michel Cousteau talks about threats to the world's coastlines, focusing on the disproportionate percentage of population that lives in coastal areas.
11:59
Water: Trans-Border Water Pollution
Because of the geography of the region and because Tijuana's sewage infrastructure has not kept pace with the city's growth, sewage enters the Tijuana River and flows into the United States. At some points, sewage flows directly onto the beach. The ...