All of Madrid's official vehicles will use clean fuels by 2011

Madrid, Spain, is currently a very polluted city where 1.8 million vehicles are responsible for 75 percent of the pollutants in the air. Madrid's City Hall has decided that it will switch all its vehicles over to "clean" fuels, that is, they will be all running on electricity, natural gas, biodiesel or ethanol. The city also announced that it will join the BEST (BioEthanol for Sustainable Transport) European project to promote the use of ethanol in cars. Madrid has also worked out agreements with groups like taxi organizations that get up to a 75 percent discount on the road tax, depending on fuel.

[Source: Ayuntamiento de Madrid via Agroinformación]