By Emily Hubmer
Before coming to school at South Dakota Mines, I was interested in environmental science from a different lens than I am now. I used to love learning about and watching documentaries focused on sustainability, mostly related to agriculture and other practices in the production of goods. As a college student, my courses have focused on other topics related to environmental science. I’ve studied chemical and biological processes, community science and communication, water and wastewater treatment, among other fields. The courses I’ve taken and the fields I’ve studied have inspired my capstone project. Like most, I want to help as many people as I can and leave a positive impact on my surroundings. One way that I can help our planet, and what I will be doing my capstone project on, is composting.
Composting is the process of breaking down materials into compost, which is a nutritionally dense substance. Typically, in landfills, when food breaks down, it is in a low-oxygen environment. The resulting byproduct of that decomposition is methane. When composted properly, the waste is exposed to oxygen, resulting in the emission of carbon dioxide. I know, an environmental science student promoting the release of carbon dioxide? While carbon dioxide is a harmful greenhouse gas, methane is also a greenhouse gas, and it is much stronger than carbon dioxide and can have a greater impact with the same amount of gas produced (Howarth, 2014). The breakdown of material into compost can benefit communities. The product can be used to help crops grow better in gardens, among other uses. Essentially, composting food waste reduces the amount of trash going into landfills, prevents methane emissions, and makes a useful end product.