------------------------------------------------------------------------------- Table A1. Effective Forcings (W/m2) Relative to 1850: 1850-2015 ------------------------------------------------------------------------------- year CO2 (a)CH4 (b)CFCs N2O (c)O3 (d)TA+SA (e)Volc Solar Net ------------------------------------------------------------------------------- 1850 0.000 0.000 0.000 0.000 0.000 0.000 -0.083 0.000 -0.083 1860 0.024 0.013 0.000 0.004 0.004 -0.029 -0.106 0.032 -0.058 1870 0.048 0.027 0.000 0.008 0.009 -0.058 -0.014 0.048 0.068 1880 0.109 0.041 0.000 0.011 0.014 -0.097 -0.026 -0.049 0.003 1890 0.179 0.058 0.000 0.014 0.018 -0.146 -0.900 -0.070 -0.847 1900 0.204 0.077 0.001 0.017 0.023 -0.195 -0.040 -0.063 0.024 1910 0.287 0.115 0.002 0.022 0.026 -0.250 -0.072 -0.043 0.087 1920 0.348 0.160 0.003 0.029 0.032 -0.307 -0.215 -0.016 0.034 1930 0.425 0.206 0.004 0.037 0.036 -0.364 -0.143 0.014 0.215 1940 0.494 0.247 0.005 0.043 0.045 -0.424 -0.073 0.037 0.374 1950 0.495 0.291 0.009 0.052 0.056 -0.484 -0.066 0.055 0.408 1960 0.599 0.365 0.027 0.061 0.078 -0.621 -0.106 0.102 0.505 1970 0.748 0.461 0.076 0.075 0.097 -0.742 -0.381 0.093 0.427 1980 0.976 0.568 0.185 0.097 0.115 -0.907 -0.108 0.169 1.095 1990 1.227 0.659 0.303 0.125 0.117 -0.997 -0.141 0.154 1.447 2000 1.464 0.695 0.347 0.150 0.117 -1.084 -0.048 0.173 1.814 2005 1.619 0.695 0.356 0.162 0.123 -1.125 -0.079 0.019 1.770 2010 1.766 0.710 0.364 0.177 0.129 -1.163 -0.082 0.028 1.929 2015 1.927 0.730 0.373 0.195 0.129 -1.199 -0.100 0.137 2.192 ------------------------------------------------------------------------------- (a)CH4: CH4-induced changes of tropospheric O3 and stratospheric H2O are included. (b)CFCs: all GHGs except CO2, CH4, N2O and O3. (c)O3: half of tropospheric O3 forcing + stratospheric O3 forcng from IPCC (2013). (d)TA+SA: tropospheric aerosols and surface albedo forcings combined. (e)Volc: volcanic forcing is 0 when there is no stratospheric aerosols.