#xkcd 2992

[todays-xkcd]

The Watership Down rabbits removed an additional 0.1 nanometers constructing their warren, although that was mostly soil. British rabbits have historically mined very little coal; the sole rabbit-run coal plant was shut down in the 1990s.

UK Coal [Explained]

Transcript

[The following formula is shown (with the divisor below a horizontal line in the comic, rather than inside parentheses):] UK total coal production (1853-present, UK DESNZ) / ((coal seam density) × (UK land area)) = 25 billion tonnes / (1.3kg/L × 240,000km²) ≈ 3 inches

[Cueball is standing to the right of the formula, upon a dotted line representing the prior ground level. Two arrows indicate that the dotted line is 3 inches above the solid line that is the current ground level.] [Caption below the panel:] The UK shut down their last coal power plant today, which means that over the course of the industrial revolution, they dug up and burned an average of 3 inches of their country.