Fig. 1: Holocene NH 2 m air temperature and high-frequency forcing.
From: High-frequency climate forcing causes prolonged cold periods in the Holocene
Absolute and anomaly (detrended) for the (a) orbital + GHG run and the (b) all forcing run. The orange dots represent the starting year of a multiyear cooling outside the 2 σ range (gray dashed lines), and the red dots represent the starting year of a multiyear cooling outside the 3 σ range (gray dotted lines). c shows the NH volcanic (AOD, black), net radiative volcanic forcing (purple), total solar irradiance (gray), and the grand solar minima61 (yellow squares).
