Air travel promises to become cleaner, if industry actions ahead of the huge, annual Paris Airshow are any indication. Virgin America— a company that's been reporting on its own greenhouse gas emissions since 2009— ordered $1.4 billion worth of new, super fuel-efficient engines from CFM International the companies announced on Wednesday. The move should help keep energy costs down, and reduce the negative environmental impacts of air travel by Virgin America as the company triples the size of its fleets, as promised back in January. According to a joint press statement from the companies, CFM's LEAP Engine will power 30, brand new Airbus A320 aircraft slated for delivery to Virgin America in 2016, and CFM's 56-5B engines will power 30 of Virgin America's current-edition Airbus A320-line aircraft.