Linocut portrait of Keeling in teal with geochemical sampling tools with the Keeling curve in copy and axes (vertical: CO2 fraction micro-mol/mol from 325 to 400 and horizontal: Year 1960 to 2000).

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   Ele Willoughby, PhD (minouette@spore.social)'s status on Tuesday, 23-Apr-2024 22:01:48 JST Ele Willoughby, PhD

   Happy birthday to #geochemist Charles David Keeling (1928 - 2005) whose decades long observations of CO2 in air samples from Mauna Loa Observatory were some of the 1st direct data to show the human contribution to greenhouse effect & global warming. The 'Keeling Curve' (in copper & red) shows both the seasonal variations (the wiggles) & the strong upward trend with time as the greenhouse gas built up in the atmosphere. 🧵1/

   #linocut #printmaking #climateChange #geochemistry #sciart #MastoArt