Seawater intrusion is the movement of saline water from the ocean or estuaries into freshwater systems. The seawater that has crept up the Mississippi River in the summer and early fall of 2023 is a reminder that coastal communities teeter in a fragile land-sea balance.
Click here for original story, What is seawater intrusion? A hydrogeologist explains the shifting balance between fresh and salt water at the coast
Source: Phys.org