For obvious and pressing reasons it's our duty and inclination to save energy. If I come to a red light and can see there is no conflicting traffic, it would be wrong to wait and pollute the air unnecessarily. No good switching off the engine, because switching it back on uses more fuel and produces a burst of exhaust gases. In any event, why should I wait for no reason? So the responsible thing is to proceed with caution. So begins the case for the defence, your Honour.
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