Scenario | Temperature range,°C above 1980–2000 | Model average,°C above 1980–2000 | Sea-level range,cm above 1990 | Model average,cm above 1990 |
---|---|---|---|---|

B1 | 1.4–2.9 | 2.0 | 81–131 | 104 |

A1T | 1.9–3.8 | 2.6 | 97–158 | 124 |

B2 | 2.0–3.8 | 2.7 | 89–145 | 114 |

A1B | 2.3–4.3 | 3.1 | 97–156 | 124 |

A2 | 2.9–5.3 | 3.9 | 98–155 | 124 |

A1FI | 3.4–6.1 | 4.6 | 113–179 | 143 |

The temperatures used are taken from the simple model emulation of 19 climate models as shown in figure 10.26 of the IPCC AR4 (2); they represent the mean ± 1 SD across all models, including carbon cycle uncertainty. The sea-level estimates were produced by using Eq.

**2**and 342 temperature scenarios and are given here excluding the uncertainty of the statistical fit, which is approximately ± 7% (1 SD).