Episode Details

California’s coastal dunes are vanishing at an alarming rate, leaving cities like Santa Barbara dangerously exposed to floods and storms. Once vital natural barriers, these dunes have shrunk by 60% since the Gold Rush, with invasive plants like ice plants accelerating erosion by trapping sediment and destabilizing dune structures. In response, Santa Barbara restored 1.1 acres of dunes on East Beach by removing invasives and planting 3,000 native species—including red sand verbena and seacliff buckwheat—to rebuild protective barriers and enhance habitat. Nearby Carpinteria is also exploring similar restoration, recognizing that native plants are key to letting dunes naturally grow and thrive. Though Santa Barbara County has fared better than other regions, the statewide trend is clear: without urgent action, rising seas and continued erosion will leave coastlines more vulnerable than ever.

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