Singapore's only landfill has 10 years left, and waste disposal rates are going up while recycling is down. The urgency to "save Semakau" or find alternatives is growing. SINGAPORE: In massive rock caverns more than 100m underground, incombustible junk and ash from burning waste are buried out of sight. A waste rationing system uses smart bins to keep track of the amount of rubbish each person throws away. People are fined if they exceed their quotas. And in the seas south of Singapore, where