Let's find some sources to learn about your commodities. News articles about different commodities represent a great first step towards learning more about K-Cups or fast fashion t-shirts; you can often find some keywords to use in library databases.
Read this article about a startup that reuses batteries: https://wbur.fm/3AuNHCE
Read the article on your own. Then, with the person next to you, come up with 4-6 search terms you might use in your research. Search terms can include the name of an expert cited in the article, the company that manufactures the item, or, regulations that oversee the disposal of a commodity. You will share back the terms you've found with the rest of the class.
Social Carbon Tax
Social Cost of Carbon