Less driving means fewer emissions. Beside saving gasoline,walking and biking are great forms of exercise. Explore your community mass transit system,and check out options for carpooling to work or school. When you do drive, make sure your car is running elffic
iently. For example , keeping your tires properly inflated can improve your gas mileage by more than 3 percent. Every gallon of gas you save not only helps your budget , it also keeps 20 pounds of dioxide out of the atmosphere.