New York Times: An upcoming study by economists at University of California, Los Angeles; the University of California, Santa Barbara; and San Francisco State University modeled 15 miles of California beaches and found large differences in the costs and benefits of shoring up eroding coastlines. Assuming a low-end estimate of 1 meter sea-level rise, a 100-year flood at San Francisco’s Ocean Beach would cause $285 million in property damage, compared to $107 million in 2000. At Venice Beach in …