State of the Climate Debate

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Date(s) - 9/16/201412:00 pm - 1:30 pm


The George C. Marshall Institute presented a discussion by noted climatologist Dr. Judith Curry, who presented a case that the climate change problem and its solution have been vastly oversimplified. The following three issues are addressed, which are of central relevance to climate policy:

  • Evidence reported by the IPCC AR5 weakens the case for human factors dominating climate change in the 20th and early 21st centuries
  • The weak linkages between anthropogenic climate change and extreme weather, and the importance of natural climate variability
  • Challenges to decision making under deep climate uncertainty

Arguments are presented that greater openness about scientific uncertainties and ignorance, and more transparency about dissent and disagreement, would provide policymakers with a more complete picture of climate science and its limitations, and ensure that the science community, policymakers, and the public are better equipped to understand, respond and adapt to climate change.

About the speaker:

Judith Curry is Professor and former Chair of the School of Earth and Atmospheric Sciences at the Georgia Institute of Technology.  She is a Fellow of the American Association for the Advancement of Science, the American Geophysical Union, and the American Meteorological Society.  She is proprietor of the blog Climate Etc. ( and has been outspoken on issues related to the integrity of climate research.  She has presented Congressional testimony numerous times on topics related to climate change.


Prof. Curry’s Powerpoint presentation is available at

A Policy Outlook containing Prof. Curry’s prepared remarks is available at


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