Salt water intrusion into aquifers

Saltwater intrusion into aquifers in Te Moanaui Oceania is exacerbated by climate change-induced sea level rise and altered rainfall patterns. Rising sea levels increase hydraulic pressure on coastal aquifers, pushing saline water inland. Reduced freshwater recharge associated with changes in rainfall distribution and increased droughts can further exacerbate the issue. When freshwater becomes contaminated with saltwater, water quality and availability for drinking, agriculture, and ecosystems is comprimised. The following nature-based solutions may be useful when taking into account salt-water intrusion.