Figure 3
From: Widespread persistent changes to temperature extremes occurred earlier than predicted

Emergence of persistent changes to TN90p (hot nights) and TX90p (hot days), cannot be explained by natural external forcing, but is likely due to anthropogenic influence, especially anthropogenic emissions greenhouse gases. Panels show the fraction of simulations exhibiting emergence consistent with warming by the year 2000 in ‘HistoricalNat’ simulations (a,b), ‘Historical’ simulations (c,d) and ‘HistoricalGHG’ simulations (e,f) of TN90p (left panels) and TX90p (right panels). White regions have no data. See Fig. S14 for TN10p (cold nights) and TX10p (cold days). The map is produced using R version 3.0.3 software (https://www.r-project.org/).