how will transportation systems betransformed in our energy future george a humeapril 28 2006 reference was made to the following internet sites preparing this presentation california commission www ca gov us dept of info admin eia doe environmental protect agency epa otaq invntory air resources board arb homepage why should we be interested and concerned about fuel use as world s fifth largest economy is really nation state that runs on every day spend approximately 82 million for gasoline diesel electricity 22 natural gas 38 consumption by sector currently nearly 100 fossil demand projected increase 35 20 years petroleum primary source foreseeable improving vehicle efficiency most effective means reduce dependence candidate alternative sources include ethanol methanol lng cng propane biodiesel liquid fuels electric vehicles hydrogen cells
