Dry Spell: S'pore has 'margin' of water safety

Note:
-Singapore's four 'national taps'
-limitation of technology: sometimes, tech is so effective that people are lulled into a sense of complacency and end up wasting energy/water instead, e.g. buying an energy-saving air-conditioner may lull one into turning on the air-conditioner at full blast the whole night, thinking that it 'doesn't use up much energy anyway', as well as placating our guilt complex towards the environment.

Sample Qns:
1. To what extent can we rely on technology to solve our environmental problems?
2. Does science and technology always improve the quality of people's lives?
3. Discuss the claim that in the modern world, people should care more about international than national issues. (Cam. 2013)
4. Is there any point in trying to predict future trends? (Cam. 2013)