#2902: Ice Core
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[Knit Cap and Megan are both wearing knit caps and scarves in a snowy and icy environment, most likely a glacier, looking at an ice drill that is a tripod with the drill in the middle. There is a helicopter on the ground in the background, with their footprints between them and the helicopter, suggesting they flew with the helicopter to the glacier. Knit Cap is holding a small container between her hands while Megan is holding the middle of the drill.]
Megan: Next, we'll identify the ice core layer matching your birth year. Do you have the shaker ready?
[Caption below the panel:]
Making the traditional paleoclimatologist cocktail
(Sourced from explainxkcd.com)
Title 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.