Figure 4. The distributions of average late twentieth to late
twenty-first century poleward snow line retreat (in km) east of the
Rocky Mountains for each month as determined by 14 CMIP5 models (Table
2). Values for RCP4.5 experiment are plotted in blue and RCP8.5 values
are shown in red. Solid black horizontal bars indicate the median value,
while dotted bars indicate the 10th and
90th percentile values. RCP4.5 and RCP8.5 retreat
values are significantly distinct (p < 0.01).