Seen on SciDev.net:
Mexican president Felipe Calderón has vetoed a bioenergy law to establish biofuel production in the country, saying that it focuses too much on maize and sugarcane production.[...]
According to Calderón, the law focuses too much on producing ethanol biofuel from sugar cane and maize, without considering other new technologies that could allow for seaweed, bacteria, enzyme and cellulose biofuels.
Critics argue that using food crops such as maize for biofuel production could compromise world food security and push up international food prices.
And let’s not forget some of the other downsides of ethanol, like what’s happening to ground water in ethanol processing plants….