Why is water unsustainable in Singapore?

Water is not unsustainable in Singapore. Singapore has invested heavily in water management and has a number of initiatives in place to ensure a sustainable water supply. These include water conservation measures, such as rainwater harvesting and greywater systems, as well as desalination plants and water recycling facilities. Singapore is also exploring new technologies, such as atmospheric water generators and underground reservoirs, to further enhance its water sustainability. As a result, Singapore is now able to meet its water needs without relying on external sources.