 The Earth has warmed rapidly near its surface, particularly in the Arctic, due to a phenomenon called Arctic amplification, which is caused by the persistent stable stratification found in this region. Global climate models tend to overestimate the depth of stably stratified atmospheric boundary layers, and this bias is strongly correlated with biases in surface temperature variability. Improving the description of the stably stratified ABL in GCMs is crucial for constraining uncertainty in climate variability and projections of climate change in the surface layer. This article was authored by Richard Davie, an eagle easel.