Fig. 7
From: Arctic amplification is caused by sea-ice loss under increasing CO2

Centennial changes as a function of month from CESM1 standard simulation with a 1%-per-year CO2 increase. Same as Fig. 3, except for the change during the a first (year 61–80 mean minus control climatology), b second (year 131–150 mean minus year 61–80 mean), and c third (year 201–220 mean minus year 131–150 mean) CO2 doubling from the standard simulation with a 1% CO2 increase per year using the CESM1. d Time-dependent warming and sea-ice loss from CESM1 simulation with a 1%-per-year CO2 increase. Same as Fig. 3d except for the CESM1 1% CO2 run