there's always a pioneering price to pay when a far-sighted person or organization goes outside of conventional means and easy cop-outs to solve a nagging problem. the initial price for "trial and error" projects may be great, but as clean water resources dwindle they will reach payback in non-obvious terms. beneficial consequences outnumber original intention. for example, the consequence of harnessing water from rain and the building of the marina barrage results in drainage, waterways, canals and rivers getting cleaned. clean longkangs, canals, rivers reduce water pollution and water-borne diseases, resulting in healthier lives and less money spent on combating filth and diseases. fish and wild animals such as otters and crocs are coming back from their hideout habitats in johor. they prefer the clean fresh water in sg as it's teeming with fish. the banks of canals and rivers are reinforced with concrete to prevent m&d and silt from being washed into rivers as that will cut down on sediment settlement time and filtration. the added benefit is that sg can now build park connectors along the banks of waterways for residents to use them as hike and bike trails for healthy pursuits, reducing burden on healthcare and automobile density. win-win. what so simi lancheow about that?
At night no sunlight how? 
