BBC: An attempt to create a pioneering carbon-neutral farm is starting in Italy. A range of new technologies is being installed at the farm in the central region of Umbria as part of an experiment to cut its CO2 emissions to zero over the course of the next year. They include everything from electric farm vehicles to sun-reflecting paint on storage buildings. It is all taking place at the Castello Monte Vibiano Vecchio olive oil farm, north of Rome. With its vineyards …