Final answer:
When an article/source does not have an author listed, the title of the article/source should be included in the MLA in-text citation.
Step-by-step explanation:
If an article/source does not have an author listed, the title of the article/source should be included in the MLA in-text citation. This is done by using the title of the article/source in quotation marks or italics, depending on the formatting style used. For example, if the title of the article is 'The Impact of Climate Change', the in-text citation would look like this: ('The Impact of Climate Change').
Learn more about MLA in-text citation