The food situation is more complex, but the article is good as starting point. Rice and wheat prices are high partially due to drought in Australia, growing world population, growing meat consumption where 1 kg of meat requires 8 kg of grain, depleting water resource etc.
For India, there is nothing wrong with the poor having more than one meal a day, they should and that is to be applauded. But there are more efficeient varieties of rice that can be grown requiring less water, but due to corrution using water a source for gaining votes, these varieties are not grown. UK is a small country, I doubt that 2.5% ethanol will have huge impact om food crops. There was ethanol before in petrol, but it was not regulatory just voluntary. Bio-ethanol is a fuel for the future, but using grass and non-edible plants rather than grains.
