Liz Koslov, assistant professor of urban planning, spoke with Curbed New York about the tense debate over how to protect New York City’s 578 miles of shoreline from the effects of climate change. Scientists forecast that lower Manhattan will see about six feet of sea-level rise in the next 80 years, triggering regular flooding and intensive storm surges. Koslov spoke about the competing impulses New Yorkers felt after 2012’s Hurricane Sandy, with some pushing to redevelop valuable waterfront properties as others opted for “managed retreat” — relocating away from the perennially threatened coasts. Koslov, who is working on a book about Staten Island communities that rejected the rebuilding narrative, said managed retreat has won grassroots support but raises concerns including the impact of lost property taxes on local governments. She urged civic leaders to flesh out a vision for a well-planned “just retreat,” which can be “potentially empowering and a force for reconstructing communities and making the waterfront public again.”