Federal policy has played a key role in the emergence of the U.S. biofuels industry. Policy measures include minimum renewable fuel usage requirements, blending and production tax credits, an import tariff, loans, and research grants. This report focuses on the mandated minimum usage requirements, the RFS, whereby a minimum volume of biofuels is to be used in the national transport. fuel supply each year. It describes the general nature of the RFS mandate and its implementation, and outlines some emerging issues related to the sustainability of the continued growth in U.S. biofuels production needed to fulfill the expanding RFS mandate, as well as the emergence of potential unintended consequences of this rapid expansion. A print on demand report.

In the United States, we have come to depend on plentiful and inexpensive energy to support our economy and lifestyles. In recent years, many questions have been raised regarding the sustainability of our current pattern of high consumption of nonrenewable energy and its environmental consequences. Further, because the United States imports about 55 percent of the nation's consumption of crude oil, there are additional concerns about the security of supply. Hence, efforts are being made to find alternatives to our current pathway, including greater energy efficiency and use of energy sources that could lower greenhouse gas (GHG) emissions such as nuclear and renewable sources, including solar, wind, geothermal, and biofuels. The United States has a long history with biofuels and the nation is on a course charted to achieve a substantial increase in biofuels. Renewable Fuel Standard evaluates the economic and environmental consequences of increasing biofuels production as a result of Renewable Fuels Standard, as amended by EISA (RFS2). The report describes biofuels produced in 2010 and those projected to be produced and consumed by 2022, reviews model projections and other estimates of the relative impact on the prices of land, and discusses the potential environmental harm and benefits of biofuels production and the barriers to achieving the RFS2 consumption mandate. Policy makers, investors, leaders in the transportation sector, and others with concerns for the environment, economy, and energy security can rely on the recommendations provided in this report.

Renewable fuels, in the present times, have become important to curb emission of greenhouse gases, which are causing damage to the environment and leading to climatic changes. Ideally, their utilization can be a zero carbon operation. Planting suitable trees on all waste lands and agro forestry on a large scale can fulfil the needs of timber, fuel, fruits, etc. All kinds of lignocellulosic biomass can be converted by several methods to useful liquid fuels like alcohols, biodiesel, methane, renewable diesel and renewable gasoline. Hydrogen can be used as a renewable fuel because of its desirable characteristics and properties for its use as a green fuel.