Cool writing, as illustrated by the work of Ernest Hemingway, is dominated by ‘showing, not telling’; action and narration are prominent with the reader left to infer what the characters are feeling.
Warm writing is the other end of the spectrum, delving deeply into the interior worlds of the characters and focussing on emotion. It is the style used predominately in the romance genre and is illustrated in the article by the work of Jane Austen.
The Writer Unboxed post asks who is the better writer. I don’t think I could honestly say who was the better writer, given that they are separated by time, geography and subject matter. I enjoy the works of both but I prefer Hemingway, which indicates that I am a writer on the cool end of the spectrum and could use some warming up.
The spectrum of warm to cool is an interesting way of looking at different styles of writing that gets away from arguments about good and bad writing. I think the next time I read a romance novel I might have better insight into the style of writing.