Greening your transportation usually involves making significant changes and/or personal sacrifices: buying a hybrid or fuel-efficient car, cutting down on driving to reorganize your life around public and self-powered transportation, or even converting your car to run on vegetable oil. The two main goals, however, are usually the same: minimize the damage you do to the environment and the damage purchasing gas does to your wallet. Wouldn’t it be convenient to accomplish these goals without buying a new car or altering your routine?

If you’re looking to decrease your carbon footprint but are not willing to commit to a big change, perhaps you should consider the Blade. This filter costs $199 and can simply be attached to the tailpipe of most cars (any 15/8 to 2 inch tailpipe). In laboratory testing the Blade has increased gas mileage by between 16% and 34% and reduced CO2 emissions by up to 12%. Additionally, the device will filter unburned and partially burned fuel—particulate material (PM)—which is dangerous for both human health and the environment. The Blade has been licensed by the California Air Recourses Board and passed the rigorous EPA 511 laboratory testing.

Even with the addition of a Blade, cars are still a major contributor to the average Americans’ ecological footprint. However, this represents an incremental improvement that can be implemented on a mass scale immediately, while we look for long-term solutions to minimize the environmental impact of transportation. Sabertec—the makers of the Blade—estimate that “Blading” every car in the U.S. would reduce annual CO2 emissions by approximately 419 billion pounds and annual fuel consumption by 21 billion gallons of gasoline.

Click Here for a list of Blade retailers and installers.