Gaza's 1.5 million people are facing a food crisis as a result of the destruction of great areas of farmland during the Israeli invasion.
According to the World Food Programme, the UN's Food and Agriculture Organisation and Palestinian officials, between 35% and 60% of the agriculture industry has been wrecked by the three-week Israeli attack, which followed two years of economic siege.
Christine van Nieuwenhuyse, the World Food Programme's country director, said: "We are hearing that 60% of the land in the north - where the farming was most intensive - may not be exploitable again. It looks to me like a disaster. It is not just farmland, but poultry as well.