Fuel does not stay fresh forever. Gasoline begins to oxidize in a few months, forming sticky varnish and gum that can clog ...

Boeing 737 commercial airliners are a dime a dozen on airports around the world, thanks to modern variants boasting great fuel efficiency for their capacity.

Sure, you can plant a tree, but Vitry said that doesn't stop your flight's emissions from entering the atmosphere. The tree may eventually absorb an equivalent amount of emissions. Or it may die. Or ...