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And while not all of that comes from food waste, a good portion of it does. For example, in the U.S., 58% of methane emissions from landfills come from food waste, according to the Environmental ...
That matters because food waste contributes over half the planet-warming methane emissions that come from landfills, according to the Environmental Protection Agency.
Since 1915, food waste has been identified as a considerable problem and has been the subject of ongoing media attention, intensifying with the launch of the "Love Food, Hate Waste" campaign in 2007. Food waste has been discussed in newspaper articles, news reports and television programmes, which have increased awareness of it as a public issue.
On the demand side, limiting food waste is an effective way to reduce food emissions. Changes to a diet less reliant on animal products such as plant-based diets are also effective. [11]: XXV This could include milk substitutes and meat alternatives. Several methods are also under investigation to reduce the greenhouse gas emissions from ...
Landfill gas is a mix of different gases created by the action of microorganisms within a landfill as they decompose organic waste, including for example, food waste and paper waste. Landfill gas is approximately forty to sixty percent methane, with the remainder being mostly carbon dioxide.
Overall, the global food system contributes between a quarter and a third of all greenhouse gas emissions. These figures include the meat and dairy industries, but also other food sources like crops.
The main factor is population, because as population increases more food is being made, but most food produced goes to waste. Especially, during COVID-19, food waste grew sharply due to the booming of food delivery services according to a 2022 study. In addition, not all countries have the same resources to provide the best quality of food ...
Carbon emissions from transport account for 11% of the total carbon emissions of food, of which the transportation from producer to consumer accounts for 4%. [45] However, "food miles" are a misleading measure; in many cases food imported from the other side of the world may have a lower carbon footprint than a locally produced equivalent, due ...