As they learn more about the realities of climate change and sea level rise, some coastal communities are taking action. This week on Sea Change Radio, we speak with Benjamin Grant, the Urban Design Policy Director for SPUR, a California-based nonprofit that focuses on making urban areas more sustainable. In response to already documented rapid erosion, Grant and his colleagues have presented San Francisco with a bold plan for re-doing a 3.5 mile stretch of San Francisco's coast, known as Ocean Beach. Grant and host Alex Wise talk about the San Francisco proposal, and how it could serve as a template for other coastal cities, if they can afford it, that is.