revised The only real solution to truly lower the cost of air travel for everyone is to reduce our reliance on fossil fuels. By redesigning the engines of the 737 MAX and, soon, the 777X to be more fuel-efficient and able to reduce carbon monoxide emissions into the environment, The Boeing Company has taken the lead in this regard. It is a positive start, even if this does not represent a move away from fossil fuels. The potential to theoretically burn up to 8% less jet fuel should, in the short run, result in cheaper expenses for airlines and lower ticket prices for customers (Boeing, 2021)