It also keeps you fit. Use public transport when possible. If there is not a good service make sure your elected representative or local authority knows. Consider sharing car journeys with friends or relatives or form a car pool. Drive more slowly.
Reduced speeds lead to less fuel being used and less pollution.
Watch out for animals crossing the road, particularly at night when your vehicle's headlights may dazzle and confuse the animal. Slow down if you think you see an animal at the side of the road. Write to Your elected representative, local authority or local paper on environmental issues that concern you. Many improvements have been achieved through persistent public outcry. Campaign for better public transport and recycling facilities.