http://needtoknow.nas.edu/energy/energy-use/transportation/ http://needtoknow.nas.edu/energy/energy-use/transportation/ http://needtoknow.nas.edu/energy/energy-use/transportation/ 60 percent of all energy used 71% of all petroleum http://needtoknow.nas.edu/energy/energy-use/transportation/ http://needtoknow.nas.edu/energy/energy-use/transportation/ http://needtoknow.nas.edu/energy/energy-use/transportation/ were http://needtoknow.nas.edu/energy/energy-use/transportation/ increase by 40% in the next 20 years 13,440 times 60 percent of all energy used 71% of petroleum used goes to transportation. http://needtoknow.nas.edu/energy/energy-use/transportation/ transportation accounts for 30% of the US energy use www.needtoknow.nas.edu/energy/energy-use/transportation/ http://needtoknow.nas.edu/energy/energy-use/transportation/ 71% of petroleum used goes to transportation. 86% on oil-based fuels 3 trillion miles 71% of petroleum used goes to transportation. http://needtoknow.nas.edu/energy/energy-use/transportation/ http://needtoknow.nas.edu/energy/energy-use/transportation/ http://needtoknow.nas.edu/energy/energy-use/transportation/ 86% of the energy 71% of petroleum used goes to transportation. 3 trillion miles http://needtoknow.nas.edu/energy/energy-use/transportation/ 86% on oil-based fuels http://needtoknow.nas.edu/energy/energy-use/transportation/ 92 percent http://needtoknow.nas.edu/energy/energy-use/transportation/