Roughly one third of the food produced in the world for human consumption every year — approximately 1.3 billion tons — gets lost or wasted, according to an FAO-commissioned study.
The document, ‘Global Food Losses and Food Waste’, was commissioned by FAO from the Swedish Institute for Food and Biotechnology (SIK) for Save Food1, an international congress being held in Düsseldorf 16-17 May at the trade fair of the international packaging industry Interpack2011.
Other key findings include: Industrialized and developing countries dissipate roughly the same quantities of food — respectively 670 and 630 million tons; every year, consumers in rich countries waste almost as much food (222 million tonnes) as the entire net food production of sub-Saharan Africa (230 million tonnes); fruits and vegetables, plus roots and tubers have the highest wastage rates of any food; the amount of food lost or wasted every year is equivalent to more than half of the world's annual cereals crop (2.3 billion tonnes in 2009/2010).
The report distinguishes between food loss and food waste. Food losses — occurring at the production, harvest, post-harvest and processing phases — are most important in developing countries, due to poor infrastructure, low levels of technology and low investment in the food production systems.
Food waste is more a problem in industrialized countries, most often caused by both retailers and consumers throwing perfectly edible foodstuffs into the trash. Per capita waste by consumers is between 95-115 kg a year in Europe and North America, while consumers in sub-Saharan Africa and South and Southeast Asia each throw away only 6-11 kg a year.
Total per capita food production for human consumption is about 900 kg a year in rich countries, almost twice the 460 kg a year produced in the poorest regions. In developing countries 40% of losses occur at post-harvest and processing levels while in industrialized countries more than 40% of losses happen at retail and consumer levels.
Food losses during harvest and in storage translate into lost income for small farmers and into higher prices for poor consumers, the report noted. Reducing losses could therefore have an immediate and significant impact on their livelihoods and food security.
Food loss and waste also amount to a major squandering of resources, including water, land, energy, labour and capital and needlessly produce greenhouse gas emissions, contributing to global warming and climate change.
The report offered a number of practical suggestions on how to reduce losses and waste.
In developing countries the problem is chiefly one of inadequate harvest techniques, poor post-harvest management and logistics, lack of suitable infrastructure, processing and packaging, and lack of marketing information which would allow production to better match demand.
The advice is therefore to strengthen the food supply chain by assisting small farmers to link directly to buyers. The private and public sectors should also invest more in infrastructure, transportation and in processing and packaging.
In middle- and high-income countries food losses and waste stem largely from consumer behaviour but also from lack of communication between different actors in the supply chain.
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