Telegraph: Ploughing up land to produce crops for biofuels won’t help the fight against climate change, a major new survey claims. Digging up valuable agricultural results in major emissions of carbon and wipes out any savings through the use of green fuels. The findings come in a new study – the first of its kind – by The Nature Conservancy and the University of Minnesota which will be published in Science later this month. They are set to reignite the heated scinetific debate …