For several generations of Unity students in Environmental Sustainability class, anyone who asked "couldn't we use vegetable fuels for transportation" was told to go away and calculate how many hectares would be needed.
Waste grease is an entirely different matter. The Grease Car clubers are aiding in recycling, and the climate emissions are officially considered negligible.
Poor go hungry while rich fill their tanks
Larry Elliott and Heather Stewart
Friday April 11 2008
Rocketing global food prices are causing acute problems of hunger and malnutrition in poor countries and have put back the fight against poverty by seven years, the World Bank said yesterday.
Robert Zoellick, the Bank's president, called on rich countries to commit an extra $500m (£250m) immediately to the World Food Programme, and sign up to what he called a "New Deal for global food policy".
Zoellick said: "In the US and Europe over the last year we have been focusing on the prices of gasoline at the pumps. While many worry about filling their gas tanks, many others around the world are struggling to fill their stomachs. And it's getting more and more difficult every day."