It is a good revision for those who are not involved in the topic. The quantitative offered information is significant and precise. Some further references needed.

The best piece I've yet to read on relationship of food commodity prices and biofuels. Information rich, very fair, and comprehensive. Highly recommended.

Corn-Ethanol is the product of the convergence of politics and money -- as usual. Farmers had been losing many of their cherished subsidies over the past decade and when the energy crisis hit the agri-lobby saw corn-ethanol as a way to keep taxpayer money flowing their direction. Forget that any number of inedible crops can be made into ethanol. Politicians don't get contributions from hemp or switch grass growers. But the did and do get money from corn farmers and the many ... More »

It is objective and gives various sides of the story.