Global Mean Effective Forcing (W/m2) Year W/m2 (after multiplication of efficacy factor) Year W-M_GHGs O3 StratH2O Solar LandUse SnowAlb StratAer BC ReflAer AIE 1880 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 1881 .0141 .0007 .0001 .0208 -.0008 .0012 .0090 .0032 -.0046 -.0063 1882 .0282 .0013 .0003 .0259 -.0017 .0025 .0230 .0064 -.0093 -.0126 1883 .0403 .0020 .0004 .0322 -.0025 .0037 -1.0880 .0096 -.0139 -.0189 1884 .0503 .0027 .0005 .0126 -.0032 .0050 -3.3320 .0128 -.0186 -.0252 1885 .0595 .0033 .0006 -.0108 -.0041 .0062 -1.4690 .0160 -.0232 -.0315 1886 .0715 .0040 .0007 -.0434 -.0049 .0075 -.8270 .0192 -.0279 -.0378 1887 .0776 .0047 .0009 -.0565 -.0058 .0088 -.8530 .0224 -.0325 -.0441 1888 .0811 .0053 .0010 -.0648 -.0066 .0099 -.4890 .0256 -.0371 -.0504 1889 .0849 .0060 .0012 -.0681 -.0074 .0112 -.6440 .0288 -.0418 -.0567 1890 .0908 .0067 .0013 -.0594 -.0083 .0125 -.8930 .0320 -.0464 -.0630 1891 .0966 .0073 .0014 -.0183 -.0090 .0138 -.6860 .0352 -.0511 -.0693 1892 .1034 .0080 .0016 -.0006 -.0097 .0149 -.4790 .0384 -.0557 -.0756 1893 .1033 .0087 .0018 .0241 -.0105 .0162 -.1950 .0416 -.0604 -.0819 1894 .1067 .0093 .0019 .0424 -.0112 .0175 -.0540 .0448 -.0650 -.0882 1895 .1086 .0100 .0020 .0260 -.0118 .0187 -.0070 .0480 -.0697 -.0945 1896 .1129 .0107 .0022 -.0026 -.0126 .0200 -.4040 .0512 -.0743 -.1008 1897 .1147 .0113 .0024 -.0291 -.0133 .0212 -.3690 .0544 -.0790 -.1071 1898 .1165 .0120 .0025 -.0367 -.0140 .0225 -.2560 .0576 -.0836 -.1134 1899 .1267 .0127 .0027 -.0463 -.0148 .0237 -.0800 .0608 -.0882 -.1197 1900 .1366 .0133 .0028 -.0503 -.0155 .0250 -.0140 .0640 -.0929 -.1260 1901 .1500 .0140 .0031 -.0564 -.0164 .0257 .0050 .0660 -.0979 -.1311 1902 .1613 .0147 .0034 -.0467 -.0174 .0265 -.4490 .0679 -.1030 -.1362 1903 .1726 .0154 .0036 -.0083 -.0183 .0271 -1.6540 .0699 -.1080 -.1412 1904 .1867 .0160 .0040 .0372 -.0194 .0279 -.7210 .0719 -.1130 -.1463 1905 .1999 .0167 .0043 .0091 -.0203 .0286 -.2700 .0738 -.1181 -.1514 1906 .2118 .0173 .0046 .0402 -.0212 .0294 -.1430 .0758 -.1231 -.1565 1907 .2231 .0180 .0049 .0172 -.0222 .0301 -.1900 .0777 -.1282 -.1616 1908 .2373 .0187 .0052 .0214 -.0232 .0308 -.2140 .0797 -.1332 -.1666 1909 .2494 .0193 .0055 -.0008 -.0242 .0315 -.0680 .0817 -.1382 -.1717 1910 .2615 .0200 .0059 -.0211 -.0251 .0322 -.0490 .0836 -.1433 -.1768 1911 .2748 .0213 .0061 -.0309 -.0258 .0330 -.0120 .0856 -.1483 -.1819 1912 .2871 .0225 .0065 -.0330 -.0266 .0337 -.4300 .0876 -.1534 -.1870 1913 .2973 .0237 .0068 -.0251 -.0273 .0344 -.5380 .0895 -.1584 -.1920 1914 .3038 .0249 .0072 -.0115 -.0280 .0351 -.2070 .0915 -.1634 -.1971 1915 .3122 .0262 .0076 .0351 -.0288 .0359 -.0660 .0935 -.1685 -.2022 1916 .3250 .0274 .0080 .0679 -.0295 .0366 -.0380 .0954 -.1735 -.2073 1917 .3372 .0286 .0083 .0878 -.0302 .0374 -.0280 .0974 -.1786 -.2124 1918 .3504 .0299 .0087 .0831 -.0310 .0380 -.0190 .0993 -.1836 -.2174 1919 .3593 .0311 .0091 .0480 -.0317 .0388 -.0210 .1013 -.1886 -.2225 1920 .3721 .0323 .0095 .0267 -.0324 .0395 -.1950 .1033 -.1937 -.2276 1921 .3825 .0336 .0098 .0164 -.0337 .0403 -.1530 .1052 -.1987 -.2327 1922 .3954 .0348 .0103 .0053 -.0348 .0410 -.0420 .1072 -.2038 -.2378 1923 .4081 .0360 .0106 .0162 -.0361 .0416 -.0020 .1092 -.2088 -.2428 1924 .4209 .0373 .0111 .0236 -.0374 .0424 -.0540 .1111 -.2138 -.2479 1925 .4335 .0385 .0115 .0552 -.0385 .0431 -.0420 .1131 -.2189 -.2530 1926 .4482 .0397 .0119 .0717 -.0398 .0434 -.0310 .1144 -.2243 -.2572 1927 .4612 .0410 .0123 .1018 -.0410 .0436 -.0090 .1158 -.2297 -.2614 1928 .4735 .0422 .0127 .0833 -.0423 .0439 -.0990 .1171 -.2351 -.2656 1929 .4880 .0434 .0131 .0794 -.0434 .0441 -.2070 .1185 -.2405 -.2698 1930 .5004 .0447 .0134 .0832 -.0447 .0443 -.1200 .1198 -.2459 -.2740 1931 .5144 .0464 .0138 .0722 -.0455 .0445 -.0850 .1211 -.2513 -.2782 1932 .5247 .0482 .0142 .0616 -.0464 .0447 -.1690 .1225 -.2568 -.2824 1933 .5411 .0500 .0146 .0464 -.0472 .0451 -.1290 .1238 -.2622 -.2866 1934 .5534 .0517 .0149 .0658 -.0480 .0453 -.0660 .1252 -.2676 -.2908 1935 .5651 .0535 .0152 .0975 -.0490 .0455 -.0730 .1265 -.2730 -.2950 1936 .5770 .0553 .0156 .1549 -.0498 .0457 -.0490 .1278 -.2784 -.2992 1937 .5912 .0571 .0159 .1414 -.0506 .0459 -.0400 .1292 -.2838 -.3034 1938 .6030 .0588 .0162 .1317 -.0515 .0462 -.0890 .1305 -.2892 -.3076 1939 .6130 .0606 .0166 .1317 -.0523 .0465 -.0710 .1319 -.2946 -.3118 1940 .6167 .0624 .0169 .1293 -.0532 .0467 -.0520 .1332 -.3001 -.3160 1941 .6163 .0641 .0173 .1279 -.0537 .0469 -.0210 .1345 -.3055 -.3202 1942 .6154 .0659 .0177 .1235 -.0543 .0472 -.0750 .1359 -.3109 -.3244 1943 .6161 .0677 .0180 .1089 -.0548 .0474 -.0780 .1372 -.3163 -.3286 1944 .6150 .0694 .0183 .1192 -.0555 .0476 -.0280 .1386 -.3217 -.3328 1945 .6210 .0712 .0187 .1602 -.0560 .0478 -.0260 .1399 -.3271 -.3370 1946 .6273 .0730 .0191 .1704 -.0565 .0481 -.0140 .1412 -.3325 -.3412 1947 .6359 .0748 .0195 .2039 -.0571 .0483 -.0280 .1426 -.3379 -.3454 1948 .6439 .0765 .0200 .2269 -.0577 .0486 -.0140 .1439 -.3434 -.3496 1949 .6584 .0783 .0204 .2126 -.0583 .0488 -.0490 .1453 -.3488 -.3538 1950 .6722 .0801 .0209 .1799 -.0588 .0490 -.0420 .1466 -.3542 -.3580 1951 .6890 .0848 .0214 .1451 -.0605 .0511 -.0190 .1522 -.3698 -.3682 1952 .7044 .0896 .0220 .1456 -.0621 .0533 -.0630 .1579 -.3854 -.3784 1953 .7206 .0943 .0227 .1234 -.0637 .0554 -.0520 .1635 -.4011 -.3886 1954 .7401 .0991 .0233 .1279 -.0654 .0576 -.0610 .1691 -.4167 -.3988 1955 .7590 .1038 .0239 .1448 -.0671 .0597 -.0160 .1748 -.4323 -.4090 1956 .7782 .1086 .0246 .2199 -.0687 .0618 -.0020 .1804 -.4480 -.4192 1957 .8000 .1133 .0254 .2723 -.0703 .0640 .0190 .1860 -.4636 -.4294 1958 .8194 .1181 .0261 .2682 -.0720 .0661 .0230 .1916 -.4792 -.4396 1959 .8473 .1229 .0268 .2324 -.0737 .0682 .0230 .1973 -.4949 -.4498 1960 .8759 .1276 .0276 .2201 -.0753 .0704 -.0800 .2029 -.5105 -.4600 1961 .8996 .1324 .0285 .1656 -.0759 .0730 -.2300 .2086 -.5256 -.4695 1962 .9261 .1371 .0293 .1347 -.0765 .0757 -.2840 .2143 -.5407 -.4790 1963 .9532 .1419 .0302 .1268 -.0771 .0784 -1.0500 .2201 -.5558 -.4885 1964 .9779 .1466 .0311 .1301 -.0776 .0812 -1.6610 .2258 -.5709 -.4980 1965 1.0062 .1514 .0320 .1393 -.0783 .0838 -.9870 .2315 -.5860 -.5075 1966 1.0508 .1561 .0330 .1717 -.0789 .0865 -.5220 .2372 -.6011 -.5170 1967 1.0832 .1609 .0339 .2032 -.0794 .0893 -.3170 .2429 -.6162 -.5265 1968 1.1169 .1656 .0349 .2142 -.0800 .0919 -.6180 .2487 -.6313 -.5360 1969 1.1616 .1704 .0359 .2292 -.0806 .0946 -.7830 .2544 -.6464 -.5455 1970 1.2089 .1751 .0370 .2273 -.0812 .0973 -.3640 .2601 -.6615 -.5550 1971 1.2499 .1799 .0380 .1804 -.0821 .0981 -.1270 .2636 -.6790 -.5638 1972 1.2970 .1846 .0391 .1858 -.0831 .0989 -.0660 .2672 -.6964 -.5726 1973 1.3604 .1894 .0402 .1435 -.0840 .0996 -.1570 .2707 -.7139 -.5814 1974 1.4036 .1942 .0413 .1316 -.0850 .1004 -.2730 .2742 -.7314 -.5902 1975 1.4521 .1989 .0423 .1057 -.0859 .1012 -.6820 .2777 -.7488 -.5990 1976 1.4882 .2036 .0434 .1270 -.0868 .1020 -.2910 .2813 -.7663 -.6078 1977 1.5496 .2084 .0445 .1584 -.0879 .1027 -.0940 .2848 -.7838 -.6166 1978 1.6053 .2132 .0457 .2232 -.0888 .1035 -.1500 .2883 -.8012 -.6254 1979 1.6632 .2179 .0467 .2752 -.0898 .1042 -.1930 .2919 -.8187 -.6342 1980 1.7213 .2178 .0479 .2773 -.0907 .1051 -.0850 .2954 -.8362 -.6430 1981 1.7780 .2177 .0492 .2826 -.0910 .1091 -.0890 .3090 -.8568 -.6521 1982 1.8299 .2176 .0505 .2185 -.0913 .1132 -1.2100 .3225 -.8773 -.6612 1983 1.8749 .2176 .0518 .2081 -.0917 .1173 -1.7440 .3361 -.8979 -.6703 1984 1.9330 .2175 .0532 .1504 -.0920 .1213 -.6820 .3496 -.9185 -.6794 1985 1.9848 .2174 .0540 .1280 -.0924 .1253 -.2700 .3632 -.9390 -.6885 1986 2.0421 .2173 .0549 .1277 -.0927 .1294 -.2940 .3768 -.9596 -.6976 1987 2.0982 .2172 .0557 .1502 -.0930 .1335 -.2160 .3903 -.9802 -.7067 1988 2.1722 .2171 .0564 .1907 -.0932 .1375 -.1530 .4039 -1.0008 -.7158 1989 2.2314 .2171 .0571 .2718 -.0929 .1416 -.1170 .4174 -1.0213 -.7249 1990 2.2757 .2170 .0577 .2590 -.0929 .1456 -.1170 .4310 -1.0419 -.7340 1991 2.3233 .2169 .0585 .2412 -.0916 .1456 -1.2410 .4310 -1.0424 -.7372 1992 2.3543 .2168 .0591 .2233 -.0926 .1456 -2.8220 .4310 -1.0428 -.7404 1993 2.3761 .2167 .0592 .1845 -.0926 .1456 -1.1230 .4310 -1.0433 -.7436 1994 2.4112 .2166 .0596 .1508 -.0926 .1456 -.4420 .4310 -1.0437 -.7468 1995 2.4575 .2165 .0600 .1368 -.0926 .1456 -.2040 .4310 -1.0442 -.7500 1996 2.4950 .2165 .0602 .1239 -.0926 .1456 -.1250 .4310 -1.0447 -.7532 1997 2.5161 .2164 .0604 .1427 -.0926 .1456 -.0960 .4310 -1.0451 -.7564 1998 2.5721 .2164 .0611 .1953 -.0926 .1456 -.0400 .4310 -1.0456 -.7596 1999 2.6148 .2164 .0616 .2363 -.0926 .1456 .0000 .4310 -1.0460 -.7628 2000 2.6399 .2164 .0617 .2767 -.0926 .1456 .0000 .4310 -1.0465 -.7660 2001 2.6672 .2164 .0615 .2590 -.0926 .1456 .0000 .4310 -1.0465 -.7660 2002 2.7032 .2164 .0617 .2412 -.0926 .1456 .0000 .4310 -1.0465 -.7660 2003 2.7487 .2164 .0619 .2233 -.0926 .1456 .0000 .4310 -1.0465 -.7660