The Keeling Curve
One instrument on a Hawaiian volcano, read continuously since 1958. The sawtooth is the planet breathing in and out each year; the climb underneath it is the thing that made climate change a measurement rather than an argument.
No preview is available from the publisher, so this is a diagram of the chart type, not the artifact itself.
By
Charles David Keeling, Scripps Institution of Oceanography · 1958
Where
Science & health · Climate
Form
Interactive · to monitor
Visual
Position, Sequence
Data
Continuous CO₂ measurements at Mauna Loa
Original