Combine your errands into one trip and you'll get things done faster and reduce traffic congestion and air pollution. FACT: When you first start a car after it has been sitting for more than an hour it pollutes up to five times more than when the engine is warm.
  Even if you reduce driving just once or twice a week, you'll reduce traffic congestion and pollution, and save money. The average automobile driver spends about 44 cents per mile including ownership and maintenance.
  Have fun, it's a great way to travel, and it can help you and the air get into condition. Vehicles on the road create more than 25% of all air pollution nationwide.
  Walk or in-line skate instead of driving. These are easy ways to get exercise and they are easy on the air.
  Regular maintenance and tune-ups, changing the oil, and checking tire inflation can improve gas mileage, extend your car's life, and increase its resale value. Maintenance can also reduce your car's emissions by more than half.
  Refueling during cooler periods of the day or in the evening can prevent gas fumes from heating up and creating ozone. And that can help reduce Spare The Air days.
  Topping off releases gas fumes into the air and cancels the benefits of the pump's anti-pollution devices. So stopping short of a full tank is safer and reduces pollution.
  Avoid using household products with high levels of volatile organic compounds (VOCs). Don't use gas-powered yard equipment - use electric instead. Don't use charcoal lighter fluid when you barbecue. Use a charcoal chimney, electric starter, or propane grill.