"Burning Biofuels May Be Worse Than Coal and Oil, say Experts," by Alok Jha. The Guardian/UK
Using biofuels made from corn, sugar cane and soy could have a greater environmental impact than burning fossil fuels, according to experts. Although the fuels themselves emit fewer greenhouse gases, they all have higher costs in terms of biodiversity loss and destruction of farmland.
Not only are corn prices being driven up, but by switching from soy to corn, the supply of soy is going down while the demand is not. Therefore, the price of both corn and soy is rising. Most importantly though is that the net-benefit of biofuels must be the main consideration. Clear-cutting the Amazon for instance to grow more biofuels to cut emissions is just plain stupid.