The amount of livestock we produce as a source of food contribute methane to the atmosphere. According to the EPA, livestock on the global scale produce 28% of all methane emissions from human-related activities (about 80 million metric tons). Apart from livestock, there are many other factors of our diet that contribute to global climate change. Among these include agricultural processes used to grow our food such as fertilizer production, land development, and transportation of the food to the grocery store. We developed farming practices that are not sustainable and thus further contribute to climate change. It is nice to have tropical fruits in your grocery store, however, to get them there we have to transport them around the world and this does not help the issue of climate change.
While paclemens is correct, and makes very good points, about our farming habits and impact of transporting foods, another way our diet contributes to global warming is as basic as the fact that we eat a lot of processed foods. I am not just talking about the excessive packaging of processed foods, but also what happens when we throw out these foods. Processed foods contain a lot of chemicals that are harmful to our bodies and when thrown out they become harmful to the environment as well. For example, how often do you see birds and other animals digging through the trash? The additives and chemicals used in the processing of foods can damage their DNA.
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