Climate Change 2001: 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