Innovative “sub-sea” desalination tech could pull freshwater from the ocean’s depths with far less energy.

Engineers are now tapping the deep ocean as a surprisingly efficient source of drinkable water. Using modular desalination pods placed hundreds of meters underwater, companies such as Flocean exploit natural hydrostatic pressure to help push salt out of seawater—lowering energy use by 40–50 % compared with conventional methods. While large-scale commercial deployment remains a few years off, early results suggest the deep sea may offer a scalable answer to global freshwater shortages in drought-prone regions.








