Randall Munroe’s xkcd web comic on September 30, 2024 is titled UK Coal. He turns the total coal production of 25 billion tonnes into having removed a three-inch layer of material from the entire land area. That’s an excellent example of What’s In It For Me (WIIFM) – turning a gigantic number inro something you can picture. On July 12, 2016 I blogged about How to make statistics understandable. But on February 7, 2023 I also blogged about An xkcd comic on a size comparison that is unhelpful.
The Explain xkcd page discusses how the coal is not evenly distributed. Consider that a seam might be 60 inches thick – twenty times the average. Then subsidence after mining can be a significant problem. There is a web page at GOV.UK titled Coal mining subsidence damage – a guide to your rights.
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