All islands have their own sewage treatment plants. The pipes are hung underneath the wooden walkways - both inbound and outbound.
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Small island water supplies typically originate from groundwater, surface water where available, desalination of ocean water, or rainwater harvesting in limited amounts (Holding and Allen, 2016).
Devon Island in Canada's far north is the largest uninhabited island in the world. Small coral atolls or islands usually have no source of fresh water, but occasionally a freshwater lens can be reached with a well.
Places like Bora Bora, Tahiti, the Maldives, and the Seychelles hold a fascination for travelers who are drawn by the natural, unspoiled beauty. But these island paradises are under siege as human-caused climate change has lifted ocean temperatures, raised sea levels, and intensified storm severity.