Earlier this week the EarthSky blog posted a good introduction to sea level rise, including what causes it and how much we are likely to see in the future. It also includes a good video on sea level rise basics from NASA Earth Observatory. You might be interested in learning more about this, especially if you live near the coast. You can find it at https://earthsky.org/earth/anticipating-future-sea-level-projections/.

The online tool shows the predicted Charleston population density (66,760) that may be affected by 4 feet of sea-level rise.