Transcript PowerPoint Presentation

The Data Have Spoken:
Climate Model Forecasts
Have Failed
Dr. Roy W. Spencer
Principal Research Scientist
The University of Alabama in Huntsville
30 October 2015
Global Tropospheric Temperatures
Monitored since 1979 with satellites
by two separate research groups (UAH, RSS)
Climate Models Over-Forecast Global Warming
when compared to all 3 types of temperature data
(satellites, radiosondes, near-surface thermometers)
The Model Failures Extend to Regional Predictions
e.g. the U.S. CORN BELT
…this then leads to exaggerated projections of
climate change impacts on agricultural yields.
Conclusion
• It is difficult to base energy policy (e.g. the Social Cost
of Carbon) on models which are demonstrably wrong
in their predictions.