David Stipp

In the following viewpoint David Stipp argues that ethanol— a renewable energy source made from corn—burns cleaner than gasoline does. He claims that although ethanol may soon be cheaper to purchase than gasoline, it is difficult to obtain because few service stations sell it. Stipp contends that as scientists develop cheaper ways to produce ethanol, and oil companies begin selling more of the fuel, this renewable energy source could reduce U.S. reliance on foreign oil supplies. David Stipp writes for Fortune magazine.

As you read, consider the following questions:

1. What is E85, according to Stipp"
2. According to Stipp, what are flex-fuel vehicles"
3. What percentage fewer miles per gallon do vehicles running on ethanol get compared with cars running on gasoline, according to the author"

Ethanol is emerging as the...