Earlier quoted context omitted.
Rising sea levels due to AGW is a contributing factor[0]. Living in an area (whose economy is) also dominated by the oil industry, I understand why you and the people living in your area tend to be confused on this. [0] https://www.sciencedaily.com/releases/2017/03/170314081553.h... EDIT: added source link
> they were able to calculate how rapidly sea level is rising with respect to the coastal wetland surface Your link doesn't support your claim. It says region has a higher-than-average relative change. The sea doesn't rise locally, but the ground can sink downward locally.
EDIT: I gave you an upvote for at least reading my source, thank you.