Aquatecture Singapore imports 40% of its water from Malaysia through a trio of pipes, top, that run along the causeway connecting the two nations.
In Singapore, there is water everywhere and, belying the old adage, almost every drop can be drunk. Much of Singapore's water falls from the sky. Stand outside in the afternoon, when dark thunderclouds usually roll by, and you will probably get drenched. An average of 7.9 ft. of rain falls on Singapore annually, nearly 2½ times the global average. Moreover, this small, chestnut-shaped, 268-sq.-mi. island is surrounded by water, albeit the salty kind.
Hot, equatorial, but with limited groundwater, Singapore has made itself a global paragon of water conservation by harvesting--and reusing--the aqueous bounty of its skies and, to a lesser...
