The Washington Post ran a worrying piece this past Sunday on the danger sea level rise already poses to Virginia’s second largest city, Norfolk. The city is a commercial and entertainment hub, and is also home to a naval base that hosts the “only shipyards in the nation capable of building aircraft carriers.” While sea level rise will affect coastal communities across America differently, and most communities will not likely be overtly affected for another 30 years, the phenomenon is a warning to communities across the coastal United States, as well as the federal government, to invest in climate-proofing coastal infrastructure. For more on the projected costs of climate change to U.S. states, see the American Security Project’s interactive state-by-state assessment, Pay Now, Pay Later.