Special Broadcasting Service: The world’s population now eats more food than it produces, leading to fears of global shortages which could prompt famines and even war. But experts say that given the right research and technology, the damaging effects of a lack of food could be lessened, and even avoided altogether. Australians have already seen the drought push up the prices of meat, dairy products, fruit and vegetables – and those price rises could be about to get much worse. “This brings …