Transportation is one of the main sources of air pollution in Singapore. In Singapore, there are an estimated of 950K vehicles, what these vehicles have in common are, they are mainly conventional gas-driven vehicles (GDV) which run on fossil fuels (eg. Petrol, diesel). The burning of these fuels emits greenhouse gases, including methane, ozone, carbon monoxide, nitrous oxide, and, most important, CO2. CO2 are the main causes of global warming, it lets light energy from the sun in but doesn’t let all of the heat energy out which in turns let causes the average temperature on Earth to raise. Hybrid vehicles which combine an internal combustion engine and one or more electric motors to power up the vehicle, has lower emission of CO2 and more ...
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