Well, I think this is somewhat on-topic for this board. After all, take a look at New Orleans/Florida and see what environmental catastrophe can to do to real estate!
Heck, look here. Remember the fires of years past? Global warming means longer, drier summers and a higher overall risk of this.
Our coastal development is entirely dependent on the status quo, even a small rise in ocean levels is going to seriously damage many communities.
Something that doesn’t get brought up enough in this debate is our water sources. SD is relies on the Colorado river, which in turn is fed by winter ice pack. Which is declining, year after year.
