Cite the ledger as a whole, or a specific meter or layer by its anchor, with the data date. The data date is printed in the header of the desk and in every data file.
Every meter and panel on the desk has an anchor: #copper, #carbon_budget, #helium, #status, #remediation, and so on. Open the desk, find the panel, and the address bar shows it when you tap its title.
@misc{barnhill2026ledger,
author = {Barnhill, Randy},
title = {The Ledger of the Earth (Earth Desk)},
year = {2026},
note = {Data as of 2026-10-15},
url = {https://the-ledger-of-the-earth.vercel.app}
}
This ledger compiles; it does not originate measurements. Every panel links its source. For a paper, cite the originating agency or study alongside the ledger, as in the examples above.
Found an error? Write to randy@barnhillig.com with the panel, the figure, and the source you checked it against. Corrections are logged in the methodology and, where they change an argument, in what a skeptic would say.