Nissan is pushing car navigation systems as a way to fight global warming, CNET reports. The idea, essentially, is that by avoiding traffic jams, drivers will use less gas.

One application, currently being tested on taxis in Beijing, feeds current traffic data gathered by sensors in other cars on the road to drivers to help them avoid traffic jams.

In early tests, Nissan says the application cuts emissions by about kilogram a day. Data shows that drivers using the system were on the road 20 percent less than the average cab traveling between similar points.

The automaker recently announced that all future models will be equipped with a fuel efficiency gauge to give drivers more information on how their driving style directly relates to fuel economy.