Off-grid coastal and island communities cannot sustain conventional desalination for safe drinking water
#00052
Coastal, island, and remote communities sit beside seawater but lack safe drinking water. Conventional desalination (RO, thermal) requires reliable power, capital, trained technicians, and supply chains they don't have — and discharges brine that harms local ecosystems.
#00053Decentralized water systems fail after installation from maintenance, spare-parts and ownership gaps
The dominant failure mode of decentralized water infrastructure is not installation — it's what happens in year two and beyond. ~58% of handpumps in sub-Saharan Africa are non-functional at any time, representing $1.2–1.5B in stranded investment over two decades.
#00054Brine discharge from conventional desalination damages the coastal ecosystems these communities depend on
Conventional desalination discharges 58–78% of inlet water as hypersaline brine that raises local salinity and depresses dissolved oxygen, damaging the inshore marine ecosystems coastal fishing communities depend on for food and income.