Portland, Oregon wants to make its International Raceway the first carbon-neutral track in the U.S., the Associated Press reports.

The city’s Bureau of Parks & Recreation, with help from the city’s office of sustainable development, is collecting data to determine how much carbon is emitted from the city-owned track.

Officials will then create a plan to offset those emissions. That could mean more trees planted in surrounding neighborhoods, or the promotion of alternative energies on Hayden Island.

The Indy Racing League’s IndyCar series is running on ethanol this year.