_:genid1 "Copyright protected. Obtain permission from the original figure source."^^ . "figure_4_hiatus_box" . "1.5"^^ . "Hiatus Box"^^ . "Panel A shows the annual mean temperature anomalies relative to a 1901–1960 baseline for global mean surface temperature and global mean tropospheric temperature. Short-term variability is superposed on a long-term warming signal, particularly since the 1960s. Panel B shows the linear trend of short (12-year) and longer (25-year) overlapping periods plotted at the time of the center of the trend period. For the longer period, trends are positive and nearly constant since about 1975. Panel C shows the annual mean Pacific Decadal Oscillation (PDO) index. Short-term temperature trends show a marked tendency to be lower during periods of generally negative PDO index, shown by the blue shading. (Figure source: adapted and updated from Trenberth 2015 and Santer et al. 2017; Panel B, © American Meteorological Society. Used with permission.)"^^ . _:genid1 . . . . . . . . . . . . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid2 .