After World War II, Lamb set up the Climatic Research Unit at the University of East Anglia to collect data and to reconstruct as much climate history as possible. His comprehensive treatise, Climate, Past, Present and Future, is one of the most remarkable and informative sources of the extent and type of data available. Lamb clearly shows that we simply do not have the vast amount of accurate weather data that would make it possible to understand climate change.
Lamb also complained that funding for improving the weather database was being dwarfed by the money spent on computer models and theorizing. Because of this wrongheaded approach, Lamb warned, we would start to see wild and unsubstantiated theories appearing. Further, predictions would fail to improve over time.
That is precisely what has happened. All prediction made by the computer models cited by the IPCC have turned out to be incorrect.
The first predictions the IPCC made, which appeared in its 1990 Assessment Report, were so wrong that the IPCC later started to refer to them as “projections” rather than “predictions.” The IPCC later offered low-, medium-, and high-range "projections" for the future, seemingly concluding that a broad enough range of forecasts was bound to include the correct one.
Even that approach proved too optimistic. All three ranges predicted by the IPCC have since turned out to be wrong as well.
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