We’re back in familiar territory on the podcast this week. Once again, we are revisiting Mark Jacobson’s famous -- some might say infamous -- 100% renewable energy scenario.

This week, we’re rounding out our previous conversation with Professor Jacobson by turning to Dr. Christopher Clack, the lead author of a critique of Jacobson’s modeling, which was published in the Proceedings of the National Academy of Sciences in June.

Dr. Clack is the CEO of Vibrant Clean Energy, a grid modeling firm. His expertise is in mathematics, statistics and optimization. He formerly worked at the National Oceanic and Atmospheric Administration and at the Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder.

Dr. Clack is also the co-lead author of a 2016 paper in the journal Nature Climate Change looking at how the U.S. could slash carbon emissions by 80 percent.

In this podcast, we talk about Clack's rebuttal, Jacobson’s rebuttal to Clack’s rebuttal, the meaning of the debate over 100 percent renewables, and the reason so many academics targeted Jacobson’s work.

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Read the critique of Jacobson's work: http://www.pnas.org/content/114/26/6722

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