A group of 12 senators, led by Sens. Tom Harkin and Charles Grassley of Iowa, is asking the U.S. Environmental Protection Agency not to consider “indirect land use” in calculating greenhouse gas emissions.

In a letter to EPA head Lisa Jackson, the senators argue that the data and methods for figuring indirect land use are not adequately developed. Senator Grassley says “it defies common sense” that EPA would publish a proposed rule based on inaccurate assumptions.

In a statement, Senator Harkin says the renewable fuels standard is “essential to breaking our over-dependence on oil.” He says a confusing ruling by EPA could seriously harm the growth of U.S. biofuels by discouraging future investments.

Source: Brownfield Network