#xkcd No. 2902
Date: 2024-3-4
Title: Ice Core
Alt text: If you find an ash deposition layer from a year in which an eruption destroyed an island that had Camellia sinensis growing on it, you can make a Gone Island Ice_τ.
https://xkcd.com/2902/
#xkcd No. 2902 explanation: https://explainxkcd.com/wiki/index.php/2902