...doubling of CO2 or its equivalent is unlikely to lie outside of the range of 1.5°-4.5°C (2.70-8.1°F), with a best estimate, based on model results and taking...account the observed climate record, of 2.5°C (4.5°F). It is expected that actual realized temperatures would lag by several years behind the equilibrium...

...sensitivity reported in the l990 Assessment, and re-affirmed in this Supplement, was l.5 to 4.5°C, with a best estimate, based on model results and taking...into account the observed climate record, of 2.5°C. Simpler models, which simulate the behaviour of GCMs. are also used to make predictions of the evolution...

...concentrations of carbon dioxide are unlikely to lie outside the range of 1.5 to 4.5 °C (2.7 to 8.1 °F), with a best estimate, based on model results and taking into account the observed climate record, of 2.5 °C (4.5 °F) . . . Potential impacts of climate change are likely to vary considerably from region...

...sensitivity reported in the 1990 Assessment, and re-affirmed in this Supplement, was 1.5* to 4.5 "C with a best estimate, based on model results and taking into account the observed climate record, of 2,5 "C Simpler models, which simulate the behaviour of GCMs, are also used to make predictions of the...

...climate sensitivity repmted in the 1990 Assessment and re-affirmed in this Supplement, was 1 S' to 43 1C with a best estimate, based on model results and taking into account the observed climate record, o Simpler models, which simulate the behaviour of GCMs, are also used to make predictions of the evolution...

...climatologists would accept as representing the general consensus in this field reported in 1992 that its ". . . best estimate, based on model results and taking into account the observed climate record" was that a doubling of the carbon concentrations would lead to a temperature increase of 2.5°C, but...