Food waste to energy to food

Abstract

Food waste represents soil degradation, lost energy and water resources and a burden to our landfills and wastewater treatment systems. In the United States, approximately 50 percent of all food grown is wasted in large part, due to distance to markets, on average 1500-2000 miles/2414-3218 km, and the cultural norms of being a throwaway society. This food waste takes up 19 percent of our landfills, and contributes directly to our dependencies on fossil fuels (annually 19 percent of fossil fuels are used for agriculture) and depletion of nonrenewable fresh water sources. Add to this the 'flaring' of methane gases at most landfills, along with the CO2 emissions, food waste adds to the greenhouse gas issues. What is remarkable is how this waste remains invisible to most of the American population. The paper provides an overview to the food waste in the United States, and how there needs to have a paradigm shift to consider food waste as an energy source to grow food. © 201 WIT Press.