use of food crops for bio fuel production, inflated crude oil prices, high cost of food production and transportation because of soaring petrol and diesel prices, floods and drought caused by global warmimng, trade barriers & trade protectionism, profiteering & stock-market speculation on projected demand for food crops, stock-market shift of investments from other commodities to food commodities, food crops allowed as tradable price-fluctuating commodities on the stock exchange, change in eating habits in developing economies, increased amount of food crops used to feed livestock for slaughter and sale to meet growing demand for meat consumption, stock-piling of food crops by food producers, traditional food crop farmers have stopped growing such crops in favour of other more lucrative crops, deliberate destruction of food crops to create lower supply to higher demand ratio to push up food crop prices, not enough safeguards and monitoring of food production practices,
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