Avoiding 10 miles of driving every week would eliminate about 500 pounds of carbon dioxide emissions a year, according to climatecrisis.net. The majority of car trips people make are under two miles, so that should be easy to swap driving for a bike or public transit, said Rob Sadowksy, executive director of the Chicagoland Bicycle Federation.
If driving is unavoidable, trading your gas-guzzler for a hybrid or more gas-efficient car helps. Aim for a car that gets at least 30 mpg. Or go without your own wheels and use car-sharing services like Zipcar.