Globally, about a third of all produced food is lost or wasted during production and consumption. Approximately 1.4 billion hectares, or close to 30% of the available agricultural land, is used to grow food that is subsequently wasted.
Given the need for an increase in food production in the coming years to feed a growing population, reducing food waste would be essential to reduce the burden on farm land and natural resources. Reducing food waste conserves energy and resources, reduces pollution during manufacturing, transporting, and sale, and also the logistics involved in hauling the food waste to landfill sites. Most of the food waste today is landfilled, a practice that is not environmentally sustainable as food breaks down to produce methane, a potent greenhouse gas that contributes to climate change.
The reasons for food waste vary among different countries. In developing countries there are high levels of what is known as “food loss”, which is unintentional wastage, often due to poor equipment, transportation and infrastructure. In wealthy countries, there are higher levels of “food waste”, i.e. food thrown away by consumers because they have purchased too much, or by retailers who reject food because of exacting aesthetic standards.

In China serious problems of food waste, natural resource scarcity, and overflowing landfills occur along with rising household incomes, urban populations, and overall food consumption. Over 200 billion yuan worth of food is thrown away annually nationwide, even as 128 million Chinese live below the poverty line. In China, which accommodates 20% of world’s population but only 7% of its arable land, and where farmers often adopt highly chemical intensive agricultural practices that continuously affect the fertility of the available land, food waste is a serious problem that needs to be urgently addressed.

In support of the World Food Day (October 16), our event focuses on food production and waste, and some questions we would be looking to answer in this forum:
- What’s special about food waste problem in China (restaurants, consumer behaviors, traditions)?
- How to deal with food waste arising out of cultural backgrounds?
- How can technology and big data help decrease food waste?
- How to control food waste at home?