Drowning history: Sea level rise threatens US historic sites

In this October 2012 photo, Jim Davis kayaks through waters flooding Bowen's Wharf after Superstorm Sandy in historic Newport, R.I. With scientists forecasting sea levels to rise by anywhere from several inches to several feet by 2100, historic structures and coastal heritage sites around the world are under threat. A multidisciplinary conference is scheduled to convene in Newport this week to discuss preserving those structures and neighborhoods that could be threatened by rising seas. (Dave Hansen/Newport Daily News via AP) MANDATORY CREDIT