A study done at the Seattle-Tacoma International Airport (SeaTac) by SkyNRG and the Carbon War Room was said to show that Airports can help increase the availability and use of biofuels. Biofuel, unlike the widely used fossil fuels, is material that comes from living matter that can be used to generate heat or energy. There is still much struggle to transition and implement biofuels in a system that's been heavily influenced by fossil fuels for many years.

US airports can pay for the co-benefits of fuel private investment and co-funding to help transition to biofuel, yet an article in Aviation Week noted that some of the methods require FAA approval and are considered outside of the control of airports. Other methods that don’t require directly purchasing biofuel (since airports aren't allowed to purchase their own fuel) involve connecting with organizations that support the use of biofuel. Organizations in Europe such as the Fly Green Fund and SkyNRG are already a part of funding and advancing these sustainable fuel movements in airports and airline services.

Since the time the study was published in aviation week, there has been some government support pushing for biofuels (not as much as oil industry receives) but there are some economic hurdles to overcome according to Crosscut. Biofuel production, storage, and use is still costly in today’s day and age; a refinery and a plant would have to be set up, people would need to pay an increased tax for the fuel, and a state government policy is needed to support biofuel production. Eventually the price of implementing biofuels in our airport services will decrease with time as Oil resources diminish. However, economics and the public will be the deciding factor in the role of biofuels at SeaTac and beyond.

http://aviationweek.com/commercial-aviation/sea-tac-study-shows-airports-can-help-accelerate-biofuels

https://www.geekwire.com/2016/seatac-aims-national-leader-jet-biofuels-announces-study-richard-bransons-nonprofit/

http://www.seattletimes.com/business/port-alaska-air-and-boeing-press-ahead-on-biofuels-at-sea-tac/

http://biomassmagazine.com/articles/14560/sea-tac-moves-a-step-closer-to-funding-aviation-biofuels

http://crosscut.com/2017/08/will-the-aviation-biofuels-era-take-off-at-sea-tac/