Ambient temperature history

Changes in ambient temperature of Central Greenland over 24,000 years. Source: oxygen-isotope record of the GRIP ice-core, using a temperature coefficient for δ ¹⁸O ml⁻¹ of 0.42 ‰ °C⁻¹, and moving average of 25 time-points for deviations from the early-20ᵗʰ century mean temperature (redrawn from Fig. 2 in Doncaster et al. 2023).

Temperature anomaly illustration

C.P. Doncaster, Timeline of the Human Condition, star index