What makes Scharlemann and Laurance's method innovati...

suggests the use of recycled cooking oil as an alternative to ethanol from grass or wood.

measures the amount of greenhouse gases produced by the burning of a fuel.

represents an effort to define the crops that are less damaging to the environment.

assumes that waste products are the best source of biofuels.

considers the overall impact of fuels, examining, for example, how it affects farmlands and biodiversity.