Practice fuel-efficient driving
Every gallon of gasoline burned puts 26 pounds of carbon dioxide into the atmosphere. You can boost the overall fuel-efficiency of your car as much as 30% by simple vehicle maintenance and attention to your style of driving.

Buy a fuel-efficient car
Even more important is the choice of car or truck you buy. If you buy a new car that gets 10 more miles per gallon than your old car, the amount of carbon dioxide reduction realized in one year will be about 2,500 pounds. The new hybrid cars, using efficient gas-electric engines, can cut global warming pollution by 30% or more.

Recycle air conditioner coolant
If your car has an air conditioner, make sure you recycle its coolant whenever you have it serviced. You can save thousands of pounds of carbon dioxide each year by doing this.

Drive less
You’ll save energy by taking the bus, riding a bike, or walking. Try consolidating trips to the mall or longer routine drives. Encourage car-pooling.