ROME, Aug 04 (IPS) – Mario Lubetkin is Assistant Director General at the Food and Agriculture Organization of the United Nations (FAO)The UN Food Systems Pre-Summit, held from 26 to 28 July in Rome, highlighted, as perhaps never before, that hunger can be defeated if we also manage to protect the environment, promote better nutrition and health. This new mentality and comprehensive approach consist of considering higher levels of economic investment to stimulate trade in agriculture and food and pursue a path towards a sustainable future.