Singapore is highly dependent on food imports, with local production supplying about 23% of hen eggs, 7% leafy vegetables and 4% fish supply. In the event of a collapse in world trade, Singapore will face huge problems providing for its own food supply.
Total food sufficiency should be given the same priority as total national defense, and pursued vigorously.
I advocate that every rooftop of all HDB apartments and government buildings be used to grow vegetables and fruit trees. In this way, we will enjoy the benefits of a cooler building as well as decreasing our reliance on food imports.
As an additional social benefit, the needy, elderly and handicapped can be tasked to take care of the garden. They will be able to use the food they grow to supplement their own needs, providing them with a productive use of time and a buffer against inflation of living expenses.
Another possibility is to replace most of the roadside trees with fruit trees, such as mango and papaya trees. Needy families can be tasked to take care of these trees, and they can take the fruits to supplement their daily needs.
A more technologically advanced approach is to establish floating hydroponics farms in remote Singapore waters, which that can supply all of Singapore’s food requirements.