It will make a significant contribution to the further reduction of the average fuel efficiency of the global airline fleet.
...and brit opines:
"I'm thinking that's a typo, right? Not what you want to see on a high-profile press release..."
Likely an error in translation - If Airbus is anything like they were 20-30 years ago, it was originally written in English, translated into French for internal review, then re-translated back to English.
