Rahn on biofuels
An issue with the piece is that Rahn identifies issues with "ethanol from corn," but does not note that these issues do not apply to ethanol from cyanobacteria/algae:
First, the facts: Corn and soybeans are the biggest U.S. grain crops and are used in many of the foods that almost everyone consumes each day.
Congress subsidized and mandated the use of ethanol in motor fuel. Currently, about 40 percent of the U.S. corn crop is used in the production of ethanol. Corn prices rose as a result of the government creating an artificial, additional demand.