In Port Moresby, the capital of Papua New Guinea, about half of people live in informal settlements on steep slopes and flood-prone areas, beyond the reach of utility services. Rising sea levels and more frequent extreme weather will make water supplies ever more fragile . Elizabeth Ila, 53, has a well, but as it is unprotected, they can only use it for bathing and washing clothes. In the recent drought, the well ran dry for two months. For drinking and cooking, Ila relies on a delivery service – she sometimes spends more than half her earnings on water for the family