Poor people in Haiti are having to eat mud due to rising food costs. Gross cookies made from clay, butter and salt are consumed in order to quell painful hunger pangs and provide much needed minerals. However, they also contain animal faeces, tapeworm, parasites, and toxins that will probably kill you - not to mention the fact that they taste like shit. Known as "terre" (earth), the biscuits are dirt-cheap and often the only food affordable to the 80% of people in Haiti live on less than 50p a day. But the rising cost of clay means that even these are now proving too expensive. Meanwhile, nearby countries like the US and Brazil are burning stockpiles of wheat, maize, sugar cane and other food crops in order to make ethanol biofuels.