Environmental

In Louisiana, 'saltwater intrusion' is an environmental and real estate concern because:

AIt increases the value of coastal properties
BRising sea levels and land subsidence cause saltwater to intrude into freshwater systems and soil, damaging agriculture, vegetation, and potentially affecting foundations and water supply✓ Correct
CIt improves soil fertility for development
DIt only affects properties within one mile of the Gulf

Explanation

Saltwater intrusion in Louisiana — driven by coastal erosion, land subsidence, canal construction, and sea level rise — contaminates freshwater sources, kills freshwater vegetation (converting productive marsh to open water), and can affect soil conditions near coastal areas.

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