Coastal properties may see a dramatic decline in value:
https://www.washingtonpost.com/national/health-science/sea-level-rise-is-eroding-home-value-and-owners-might-not-even-know-it/2018/08/20/ff63fa8c-a0d5-11e8-93e3-24d1703d2a7a_story.html
https://www.washingtonpost.com/national/health-science/sea-level-rise-is-eroding-home-value-and-owners-might-not-even-know-it/2018/08/20/ff63fa8c-a0d5-11e8-93e3-24d1703d2a7a_story.html