TreeHugger has posted a report by Kambiz Salari, of Lawrence Livermore National Laboratory, who claims that "for a truck travelling 70 MPH, 65 per cent of the fuel burned is just overcoming aerodynamic drag. Much of that drag come from the air vortices generated behind the vehicle as it moves, that low-pressure zone that bicyclists and hyper-milers love to "draft" in". Kambiz Salari is also applying for a patent on this claim as well, one that will assist in pushing air into the truck, while improving gas mileage and cancelling out the vehicle's draft at the same time.