Helium.com | Fuel Economy | What is alternative fuel? http://www.helium.com/knowledge/77792-what-is-alternative-fuel.xml Helium.com > Fuel Economy > What is alternative fuel? en-us Copyright Helium.com Mon, 05 May 2008 19:39:55 GMT Mon, 05 May 2008 19:39:55 GMT Today the world is vastly different from less than a century ago. Homes were heated with coal, or wood burning stoves. Cars ran on lead gasoline, ... http://www.helium.com/items/1652865-what-is-alternative-fuel Mon, 16 Nov 2009 23:00:24