The document discusses Brazil's use of renewable fuels like biodiesel. It notes that over 45% of Brazil's energy comes from renewable sources, compared to around 12.9% globally. The Brazilian biodiesel program was introduced in 2005 and aims to diversify energy sources and reduce oil imports while promoting social development. Biodiesel production has increased from around 400,000 cubic meters in 2005 to a forecasted 2.5 million cubic meters in 2010. The industry faces issues around feedstock selection and costs that will need to be addressed for long term success.