Abu Dhabi’s flagship carrier Etihad has partnered with Boeing to launch what they say will be one of the world’s most fuel-efficient long haul airplanes as the company seeks to save costs on fuel and position itself as a more environmentally-conscious choice for travelers.

Etihad’s “Greenliner” is a 787 Dreamliner that will depart on its first route from Abu Dhabi to Brussels next year. Etihad’s CEO Tony Douglas described the aircraft as a flying laboratory for testing that could benefit the entire industry.

As fuel costs eat up a quarter of airline spending, Douglas said Monday the goal of the Greenliner is to be 20% more fuel efficient than other aircraft in Etihad’s fleet.

People visit planes during the opening day of the Dubai Airshow, in Dubai, United Arab Emirates, Sunday, Nov. 17, 2019. The biennial airshow opened as major Gulf airlines rein back big-ticket purchases after a staggering $140 billion in new orders were announced at the 2013 show before global oil prices collapsed. (AP PhotoKamran Jebreili)

People visit planes during the opening day of the Dubai Airshow, in Dubai, United Arab Emirates, Sunday, Nov. 17, 2019. The biennial airshow opened as major Gulf airlines rein back big-ticket purchases after a staggering $140 billion in new orders were announced at the 2013 show before global oil prices collapsed. (AP PhotoKamran Jebreili)

Aviation accounts for a small but rapidly growing share of greenhouse-gas emissions — about 2.5% worldwide.