Aug 21, 2012 — People thought the hardy Jatropha tree was the answer to the food vs. fuel debate, until it wasn't. Financial hard times and a misunderstanding revealed this biofuel to be like all the rest — in need of good food and water.
Nov 7, 2011 — Grease rustling is on the rise, as thieves make off with used restaurant grease. The goo left over from deep-fat frying is prized on the biofuels market. As fuel prices go up, so does the price of recycled grease.