THE POTENTIAL IMPACT OF THE GREENHOUSE EFFECT ON SINGAPORE

Abstract

The greenhouse effect is an issue that concerns every one. Recent evidences suggests that the gaseous composition of our atmosphere is changing, and is likely to continue to do so in the coming decades. These gases have the ability to trap terrestrial radiation, which warms the surface of the earth. This paper reviews several climate model results for Singapore if the carbon dioxide concentration in the atmosphere were doubled from present levels. Based on these simulations, some possible climate scenarios for Singapore are explored. The findings reveal that Singapore in the greenhouse era can expect a higher temperature of about 2 to 3°C; with a possible reduction and increase in precipitation during the northeast and southwest monsoon season, respectively. There is also likely to be a reduction in low level clouds. The projected greenhouse impacts highlight some of the areas that are especially vulnerable to climatic stress. The interactive relationship between Man and Climate is also examined. In particular, the human perception of climate; how Society adjusts and adapts to climate change; the range of human choices; and the types of responses to it. The Singaporean's level of environmental awareness and concern towards the greenhouse effect is also assessed. The survey results show that Singaporeans generally have a low level of environmental awareness. The greenhouse problem can only be resolved through concerted international efforts. On a national level, Singapore can formulate appropriate prevention and adaptation strategies to deal with the problem. Much further research is required to improve the resolution of climate models; and there is a need for a multi-disciplinary impact assessment of possible climate change.