Food waste has serious environmental consequences. Agricultural production in the U.S. uses half the total land, 80% of the fresh water, and 10% of the total energy, so when food is thrown away those resources are being wasted. In the U.S., food production is to blame for 22% of all greenhouse gas emissions. Since over a third of all the food produced in the U.S. will never be eaten, 9% of national emissions stemmed from the production of food that is thrown out. The food system also leads to environmental degradation in the form of methane emissions from livestock, chemical runoff from growing and processing, soil degradation from unsustainable farming practices, ecosystem destruction to make room for farmland, etc. As waste, food takes up about 20% of landfill space and releases greenhouse gases as it decomposes; preventable food waste is responsible for 3% of GHG emissions in the U.S. This brings the total GHG emissions for food waste to 11% of the national emissions. As these and other emissions increase the effects of climate change, drastic changes in weather patterns, sea levels, etc. will affect agriculture and increase the risk of food loss.