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Working Group I: The Scientific Basis |
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II.4: Model Average Surface Air Temperature Change (°C)
| Year |
A1B |
A1T |
A1FI |
A2 |
B1 |
B2 |
IS92a |
 |
| 1750 to 1990 |
0.33 |
0.33 |
0.33 |
0.33 |
0.33 |
0.33 |
0.34 |
| 1990 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
| 2000 |
0.16 |
0.16 |
0.16 |
0.16 |
0.16 |
0.16 |
0.15 |
| 2010 |
0.30 |
0.40 |
0.32 |
0.35 |
0.34 |
0.39 |
0.27 |
| 2020 |
0.52 |
0.71 |
0.55 |
0.50 |
0.55 |
0.66 |
0.43 |
| 2030 |
0.85 |
1.03 |
0.85 |
0.73 |
0.77 |
0.93 |
0.61 |
| 2040 |
1.26 |
1.41 |
1.27 |
1.06 |
0.98 |
1.18 |
0.80 |
| 2050 |
1.59 |
1.75 |
1.86 |
1.42 |
1.21 |
1.44 |
1.00 |
| 2060 |
1.97 |
2.04 |
2.50 |
1.85 |
1.44 |
1.69 |
1.26 |
| 2070 |
2.30 |
2.25 |
3.10 |
2.33 |
1.63 |
1.94 |
1.52 |
| 2080 |
2.56 |
2.41 |
3.64 |
2.81 |
1.79 |
2.20 |
1.79 |
| 2090 |
2.77 |
2.49 |
4.09 |
3.29 |
1.91 |
2.44 |
2.08 |
| 2100 |
2.95 |
2.54 |
4.49 |
3.79 |
1.98 |
2.69 |
2.38 |
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