Fig. 5: Recent climate change over the study area.
From: Forest fires and climate-induced tree range shifts in the western US

Difference between average 1981–2010 climate and average 1961–1990 climate across the study area (ngrid-cells = 886,911), showing 95% confidence interval and range (standardized by Z score). Boxplots include the median line, a box denoting the interquartile range, whiskers denoting values ± 1.5x the interquartile range, and points denoting all outliers. Changes in all climate variables were statistically significant (two-sided t-test, with p < 2.2e−16 for each climate variable). The temperature variables increased at a greater magnitude than the precipitation variables decreased. Source data are provided as a Source Data file.