Singapore, the tiny Southeast Asian city-state, is an unlikely place for a farming revolution. : SINGAPORE, May 30 (Reuters) - Singapore, the tiny Southeast Asian city-state, is an unlikely place for a farming revolution. With tiered fish farms, vegetable plots atop office buildings and lab-grown shrimp, the island aims to beef up its own food production and rely less on imports to feed its 5.6 million people. Singapore produces about 10% of its food but as climate change and population growth threatens global food supplies, it aims to raise that to 30% by 2030 under a plan known as ‘30-by-30’.