Comment & Debate
“The Problem With Biofuels”. Washington Post. 27 Feb. 2008 – separate studies released this month by Princeton University and the Nature Conservancy reveal that biofuels are not a silver bullet in the battle against global warming. In fact, they could make things worse.
Corn and sugar cane are common sources of ethanol. Aside from emitting fewer greenhouse gases than coal or oil when burned as fuel, these biofuel crops remove carbon from the atmosphere while they are growing — thus making them nearly carbon-neutral. But the studies show that ethanol may be even more dangerous for the environment than fossil fuels are. As the Princeton study points out, clearing previously untouched land to grow biofuel crops releases long-sequestered carbon into the atmosphere. While planting corn and sugar cane in already tilled land is fine, a problem arises when farmers churn up new land to grow more fuel or the food and feed displaced by biofuel crops.
The impact of these land-use changes is enormous. As the study from the Nature Conservancy warns, “converting rainforests, peatlands, savannas, or grasslands to produce biofuels in Brazil, Southeast Asia and the United States creates a ‘biofuel carbon debt’ by releasing 17 to 420 times more carbon dioxide than the fossil fuels they replace.”
Professor Ed Gallagher, author of the Report on Biofuels. – “[The] overall conclusion was that we really needed to slow down on biofuel production and use because all the new evidence shows there are some potentially harmful effects.”[1]