Around the world, a food crisis is looming. Global demand for crops is exceeding supply and even the most conservative estimates suggest that we will need to double food production over the next 50 years - still using the same amount of land and dwindling supplies of water. Many plant scientists believe genetic modification is the answer. Jimmy Doherty, pig farmer, environmentalist and former entomologist, is on a mission to find out if GM can really save the world. (From the UK) (Documentary) G CC