Here are some top tips for 'greener driving':

• Pump up to cut down.
Under-inflated tyres create more resistance when the car is moving, meaning that engines have to work harder, so more fuel is used and more emissions produced.

• Less clutter means less CO2.
A full boot adds weight and therefore increases the load on your engine. Remove clutter to save fuel.

• Driving at an appropriate speed reduces CO2.
Not only does staying at or within the speed limit increase driver safety, it also reduces CO2 emissions and saves money on petrol costs.

• Less stopping and starting means less CO2.
Anticipating traffic flow can reduce the need to start and stop engines.

• Over-revving accelerates emissions.
Modern car engines are designed to be efficient from the moment they are switched on, so revving up like a Formula 1 car in pole position only wastes fuel and increases engine wear.

• Idling is wasting fuel.
If you're likely to be at a standstill for more than three minutes, switch off the engine.

• Don't get lost.
Don't waste fuel by going the wrong way - plan your route before leaving.