<p>Agriculture Secretary Tom Vilsack greets researchers, members of Congress, and passengers of Alaska Airlines Flight 4, celebrating the first commercial flight powered in part by wood-to-jet fuel from Washington state to Reagan National Airport, Washington, D.C., on Monday, Nov. 14, 2016. 1,000 gallons of biofuel produced from discarded tree limbs and branches were blended with standard aviation fuel used for this flight. USDA photo by Lance Cheung. 
</p><p>Tribal partnerships fuel sustainable aviation
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Fueling our Future, from Wood to Wing
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/usdagov/30989480895/">20161114-OSEC-LSC-0031</a>