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Global food waste sets off 3.3b tons of carbon dioxide per year
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The food the world wastes accounts for more greenhouse gas emissions than any country except for the United States and China, the United Nations said in a report yesterday.
Every year about a third of all food for human consumption, around 1.3 billion tons, is wasted, along with all the energy, water and chemicals needed to produce it and dispose of it.
Almost 30 percent of the world’s farmland, and a volume of water equivalent to the annual discharge of the River Volga, are in effect being used in vain.
In its report entitled “The Food Wastage Footprint,” the UN Food and Agriculture Organization estimated that the carbon footprint of wasted food was equivalent to 3.3 billion tons of carbon dioxide per year.
If it were a country, it would be the world’s third-biggest emitter, suggesting that more efficient food use could contribute substantially to global efforts to cut greenhouse gases to limit global warming.
In the industrialized world, much of the waste comes from consumers buying too much and throwing away what they do not eat. In developing countries, it is mainly the result of inefficient farming and a lack of proper storage facilities.
“Food wastage reduction would not only avoid pressure on scarce natural resources but also decrease the need to raise food production by 60 percent in order to meet the 2050 population demand,” the FAO said.
It suggested improving communication between producers and consumers to manage the supply chain more efficiently, as well as investing more in harvesting, cooling and packaging methods.
It also said consumers in the developed world should be encouraged to serve smaller portions and make more use of leftovers. Businesses should give surplus food to charities, and develop alternatives to dumping organic waste in landfill.
The FAO estimated the cost of the wasted food, excluding fish and seafood, at about US$750 billion a year, based on producer prices.
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