The Army Corps of Engineers has updated its circular (“Sea-Level Change Considerations For Civil Works Programs“) spelling out how it will approach designing its projects to address sea level rise.
If your community has any Corps projects, you’ll definitely want to have a quick skim (it’s shorter than it looks: most of the important stuff is in the first few pages, though you may want to dive into some of the appendices), and even if you don’t, it provides a good example of a methodical way to approach a complex issue.