Global production of biofuels increased 17% in 2010 to reach an all-time high of 105 billion liters, up from 90 billion liters in 2009. High oil prices, a global economic rebound and new laws and mandates in Argentina, Brazil, Canada, China and the U.S., among other countries, are all factors behind the surge in production, according to research conducted by the Worldwatch Institute's climate and energy program for the website Vital Signs Online.

The U.S. and Brazil remain the two largest producers of ethanol. In 2010, the U.S. generated 49 billion liters, or 57% of global output, and Brazil produced 28 billion liters, – 33% of the total. Corn is the primary feedstock for U.S. ethanol, and sugarcane is the dominant source of ethanol in Brazil.

"In the U.S., the record production of biofuels is attributed in part to high oil prices, which encouraged several large fuel companies, including Sunoco, Valero, Flint Hills and Murphy Oil, to enter the ethanol industry," says Alexander Ochs, director of Worldwatch's climate and energy program. High oil prices were also a factor in Brazil, where every third car-owner drives a "flex-fuel" vehicle that can run on either fossil or bio-based fuels. Many Brazilian drivers have switched to sugarcane ethanol because it is cheaper than gasoline.

"Although the U.S. and Brazil are the world leaders in ethanol, the largest producer of biodiesel is the European Union, which generated 53% of all biodiesel in 2010," says Ochs. "However, we may see some European countries switch from biodiesel to ethanol because a recent report from the European Commission states that ethanol crops have a higher energy content than biodiesel crops, making them more efficient sources of fuel."

Vital Signsauthors Sam Shrank, a Worldwatch MAP Sustainable Energy fellow, and Farhad Farahmand, a climate and energy research intern, also explored how new mandates in Argentina, Brazil, Canada and China have altered the biofuel industries in these countries. "In Argentina, the biodiesel industry grew not only because of favorable conditions for growing soybeans, but also in response to a new B7 blending mandate, which requires the fuel to be 7% biodiesel and 93% diesel." Accordingly, biodiesel producers in Argentina are investing heavily in facilities to increase production.

In the United States, however, the Environmental Protection Agency (EPA) made the decision to dramatically lower the country's production target for cellulosic ethanol, a biofuel that is made from woody plants or crop waste and that can be converted to ethanol much more efficiently than conventional ethanol, resulting in lower associated greenhouse gas emissions. "The EPA's target reduction reflects the technical challenges and high costs of commercializing so-called 'second-generation' biofuels," says Shrank. "Instead of the 950 million liters required initially under the 2007 Energy Independence and Security Act, the final target will be a much smaller 25 million liters."

Proposed legislation in the U.S. Senate would cut current ethanol production subsidies while maintaining tax credits for related infrastructure such as refilling stations. If supports like subsidies and tariffs are removed in the United States, sugarcane ethanol from Brazil will likely become more prevalent. Although sugarcane ethanol has the benefit of being cheaper and more efficient to produce, there are concerns that increased production will speed deforestation in Brazil as more land is cleared for feedstock cultivation.

The new Vital Signs Online article highlights both the increases in global production of biofuels and the factors behind this growth. It presents the latest facts and figures on the major biofuels producers and outlines new laws and mandates that will affect production of the fuels.

Further highlights from the study