00 California's coastal zones are areas of extreme vulnerability, subject to the vicissitudes of weather and prone to erosion, landslides, and flooding. Gerald
San Diego today is a vibrant and bustling coastal city, but it wasn't always so. The city's transformation from a rough-hewn border town and frontier port to a
The Tijuana River Valley Historical Ecology Investigation synthesizes hundreds of historical maps, photographs, and texts to reconstruct the ecological, hydrolo